Hmm, wonder if this is related to apt being configured to use the
apt-cacher-ng proxy that is running on the affected system.  I will
remove the proxy configuration and see if this problem goes away.
Again, no such problem with 5.10 kernel in Debian 11.

2024-02-04T14:20:46.732904-05:00 mini2 kernel: [61618.864410]
usercopy: Kernel memory exposure attempt detected from kmap (offset 0,
size 16384)!
2024-02-04T14:20:46.732938-05:00 mini2 kernel: [61618.865161]
usercopy: Kernel memory exposure attempt detected from kmap (offset
1341, size 5364)!
2024-02-04T14:20:46.732941-05:00 mini2 kernel: [61618.867560]
------------[ cut here ]------------
2024-02-04T14:20:46.732945-05:00 mini2 kernel: [61618.867562] kernel
BUG at mm/usercopy.c:101!
2024-02-04T14:20:46.732948-05:00 mini2 kernel: [61618.867573] invalid
opcode: 0000 [#1] PREEMPT SMP
2024-02-04T14:20:46.732951-05:00 mini2 kernel: [61618.870649]
------------[ cut here ]------------
2024-02-04T14:20:46.732953-05:00 mini2 kernel: [61618.873665] CPU: 0
PID: 4308 Comm: http Not tainted 6.1.0-17-686 #1  Debian 6.1.69-1
2024-02-04T14:20:46.732956-05:00 mini2 kernel: [61618.873671] Hardware
name: Apple Computer, Inc. Macmini1,1/Mac-F4208EC8, BIOS
MM11.88Z.0055.B
08.0610121326 10/12/06
2024-02-04T14:20:46.732960-05:00 mini2 kernel: [61618.873674] EIP:
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.732963-05:00 mini2 kernel: [61618.873684] Code: 44
cb bb 00 20 b1 d0 89 4d f0 b9 33 9a af d0 0f 45 cb ff 75 0c ff 75 08
57 52 5
6 50 ff 75 f0 51 68 a0 1f b1 d0 e8 8f 89 ff ff <0f> 0b 56 31 d2 b8 4a
20 b1 d0 ff 75 ec 8b 4d f0 e8 86 ff ff ff 56
2024-02-04T14:20:46.732965-05:00 mini2 kernel: [61618.876722] kernel
BUG at mm/usercopy.c:101!
2024-02-04T14:20:46.732968-05:00 mini2 kernel: [61618.879531] EAX:
00000053 EBX: d0b12000 ECX: f6bcf8c0 EDX: f6bc9d50
2024-02-04T14:20:46.732970-05:00 mini2 kernel: [61618.879535] ESI:
d0b28ae8 EDI: d0b28ae8 EBP: c487fc64 ESP: c487fc30
2024-02-04T14:20:46.732973-05:00 mini2 kernel: [61618.879538] DS: 007b
ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00010246
2024-02-04T14:20:46.732975-05:00 mini2 kernel: [61618.879543] CR0:
80050033 CR2: b7796014 CR3: 35594000 CR4: 000006d0
2024-02-04T14:20:46.732978-05:00 mini2 kernel: [61618.879547] Call Trace:
2024-02-04T14:20:46.732981-05:00 mini2 kernel: [61618.879552]  ?
__die_body.cold+0x14/0x1a
2024-02-04T14:20:46.732984-05:00 mini2 kernel: [61618.879558]  ? __die+0x21/0x26
2024-02-04T14:20:46.732986-05:00 mini2 kernel: [61618.879562]  ? die+0x28/0x50
2024-02-04T14:20:46.732989-05:00 mini2 kernel: [61618.879569]  ?
do_trap+0xbb/0xe0
2024-02-04T14:20:46.732991-05:00 mini2 kernel: [61618.879574]  ?
do_error_trap+0x4c/0x60
2024-02-04T14:20:46.732994-05:00 mini2 kernel: [61618.879579]  ?
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.732996-05:00 mini2 kernel: [61618.879583]  ?
exc_overflow+0x40/0x40
2024-02-04T14:20:46.732999-05:00 mini2 kernel: [61618.879589]  ?
exc_invalid_op+0x44/0x60
2024-02-04T14:20:46.733001-05:00 mini2 kernel: [61618.935755]  ?
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.733004-05:00 mini2 kernel: [61618.938565]  ?
handle_exception+0x133/0x133
2024-02-04T14:20:46.733007-05:00 mini2 kernel: [61618.941372]  ?
exc_overflow+0x40/0x40
2024-02-04T14:20:46.733009-05:00 mini2 kernel: [61618.944116]  ?
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.733011-05:00 mini2 kernel: [61618.946866]  ?
exc_overflow+0x40/0x40
2024-02-04T14:20:46.733014-05:00 mini2 kernel: [61618.949581]  ?
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.733017-05:00 mini2 kernel: [61618.952264]
__check_object_size.cold+0xae/0xae
2024-02-04T14:20:46.733020-05:00 mini2 kernel: [61618.954903]  ?
kmap_high+0x6f/0x1f0
2024-02-04T14:20:46.733023-05:00 mini2 kernel: [61618.957534]
simple_copy_to_iter+0x1c/0x40
2024-02-04T14:20:46.733025-05:00 mini2 kernel: [61618.960158]
__skb_datagram_iter+0x163/0x320
2024-02-04T14:20:46.733028-05:00 mini2 kernel: [61618.962769]
skb_copy_datagram_iter+0x2d/0x80
2024-02-04T14:20:46.733030-05:00 mini2 kernel: [61618.965364]  ?
skb_free_datagram+0x20/0x20
2024-02-04T14:20:46.733033-05:00 mini2 kernel: [61618.967905]
tcp_recvmsg_locked+0x582/0x8a0
2024-02-04T14:20:46.733035-05:00 mini2 kernel: [61618.970409]
tcp_recvmsg+0x6f/0x1e0
2024-02-04T14:20:46.733037-05:00 mini2 kernel: [61618.972892]  ?
tcp_recv_timestamp+0x240/0x240
2024-02-04T14:20:46.733040-05:00 mini2 kernel: [61618.975373]
inet_recvmsg+0x54/0x130
2024-02-04T14:20:46.733043-05:00 mini2 kernel: [61618.977848]  ?
security_socket_recvmsg+0x41/0x60
2024-02-04T14:20:46.733045-05:00 mini2 kernel: [61618.980338]
sock_recvmsg+0x73/0x90
2024-02-04T14:20:46.733047-05:00 mini2 kernel: [61618.982824]  ?
ipip_gso_segment+0x30/0x30
2024-02-04T14:20:46.733050-05:00 mini2 kernel: [61618.985316]
sock_read_iter+0x84/0xe0
2024-02-04T14:20:46.733052-05:00 mini2 kernel: [61618.987815]
vfs_read+0x288/0x2c0
2024-02-04T14:20:46.733055-05:00 mini2 kernel: [61618.990294]
ksys_read+0xab/0xe0
2024-02-04T14:20:46.733057-05:00 mini2 kernel: [61618.992745]
__ia32_sys_read+0x15/0x20
2024-02-04T14:20:46.733060-05:00 mini2 kernel: [61618.995177]
__do_fast_syscall_32+0x68/0xb0
2024-02-04T14:20:46.733062-05:00 mini2 kernel: [61618.997592]  ?
exit_to_user_mode_prepare+0x9d/0x170
2024-02-04T14:20:46.733065-05:00 mini2 kernel: [61619.000007]  ?
syscall_exit_to_user_mode+0x29/0x40
2024-02-04T14:20:46.733067-05:00 mini2 kernel: [61619.002419]  ?
__do_fast_syscall_32+0x72/0xb0
2024-02-04T14:20:46.733070-05:00 mini2 kernel: [61619.004814]  ?
syscall_exit_to_user_mode+0x29/0x40
2024-02-04T14:20:46.733072-05:00 mini2 kernel: [61619.007215]  ?
__ia32_sys_read+0x15/0x20
2024-02-04T14:20:46.733060-05:00 mini2 kernel: [61618.995177]
__do_fast_syscall_32+0x68/0xb0
2024-02-04T14:20:46.733062-05:00 mini2 kernel: [61618.997592]  ?
exit_to_user_mode_prepare+0x9d/0x170
2024-02-04T14:20:46.733065-05:00 mini2 kernel: [61619.000007]  ?
syscall_exit_to_user_mode+0x29/0x40
2024-02-04T14:20:46.733067-05:00 mini2 kernel: [61619.002419]  ?
__do_fast_syscall_32+0x72/0xb0
2024-02-04T14:20:46.733070-05:00 mini2 kernel: [61619.004814]  ?
syscall_exit_to_user_mode+0x29/0x40
2024-02-04T14:20:46.733072-05:00 mini2 kernel: [61619.007215]  ?
__ia32_sys_read+0x15/0x20
2024-02-04T14:20:46.733075-05:00 mini2 kernel: [61619.009590]  ?
__do_fast_syscall_32+0x72/0xb0
2024-02-04T14:20:46.733077-05:00 mini2 kernel: [61619.011961]  ?
exit_to_user_mode_prepare+0x32/0x170
2024-02-04T14:20:46.733080-05:00 mini2 kernel: [61619.014318]  ?
irqentry_exit_to_user_mode+0x16/0x20
2024-02-04T14:20:46.733082-05:00 mini2 kernel: [61619.016664]
do_fast_syscall_32+0x29/0x60
2024-02-04T14:20:46.733085-05:00 mini2 kernel: [61619.019003]
do_SYSENTER_32+0x15/0x20
2024-02-04T14:20:46.733087-05:00 mini2 kernel: [61619.021328]
entry_SYSENTER_32+0x98/0xf1
2024-02-04T14:20:46.733090-05:00 mini2 kernel: [61619.023648] EIP: 0xb7f07559
2024-02-04T14:20:46.733092-05:00 mini2 kernel: [61619.025943] Code: 10
05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01
00 00 0
0 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90
90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76
2024-02-04T14:20:46.733095-05:00 mini2 kernel: [61619.028430] EAX:
ffffffda EBX: 00000003 ECX: 016d1328 EDX: 0000fe88
2024-02-04T14:20:46.733098-05:00 mini2 kernel: [61619.030963] ESI:
b775aff4 EDI: 00000000 EBP: 016d03c0 ESP: bfd74a80
2024-02-04T14:20:46.733100-05:00 mini2 kernel: [61619.033479] DS: 007b
ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000246
2024-02-04T14:20:46.733103-05:00 mini2 kernel: [61619.036004] Modules
linked in: tls tun xt_tcpudp i915 ath5k xt_conntrack snd_hda_codec_idt
nf_con
ntrack snd_hda_codec_generic nf_defrag_ipv6 ledtrig_audio
nf_defrag_ipv4 ath coretemp drm_buddy snd_hda_intel snd_intel_dspcfg
drm_display_helper k
vm_intel nft_compat nf_tables cec snd_intel_sdw_acpi mac80211 rc_core
kvm ttm applesmc irqbypass snd_hda_codec drm_kms_helper libarc4
i2c_algo_bit
iTCO_wdt fb_sys_fops cfg80211 snd_hda_core intel_pmc_bxt snd_hwdep
iTCO_vendor_support syscopyarea sysfillrect watchdog snd_pcm sysimgblt
pcspkr nf
netlink snd_timer at24 rfkill snd soundcore appledisplay sg
apple_mfi_fastcharge evdev tpm_infineon button acpi_cpufreq
binfmt_misc firewire_sbp2 e
fi_pstore drm loop dm_mod fuse configfs ip_tables x_tables autofs4 xfs
libcrc32c crc32c_generic hid_apple hid_appleir hid_generic usbhid hid
sd_mod
t10_pi crc64_rocksoft sr_mod crc64 cdrom crc_t10dif crct10dif_generic
crct10dif_common ata_generic ahci ata_piix libahci libata scsi_mod
ehci_pci
firewire_ohci
2024-02-04T14:20:46.733107-05:00 mini2 kernel: [61619.036167]
firewire_core uhci_hcd ehci_hcd i2c_i801 lpc_ich i2c_smbus scsi_common
crc_itu_t usb
core usb_common sky2 video wmi
2024-02-04T14:20:46.733110-05:00 mini2 kernel: [61619.059387] invalid
opcode: 0000 [#2] PREEMPT SMP
2024-02-04T14:20:46.733113-05:00 mini2 kernel: [61619.059438] ---[ end
trace 0000000000000000 ]---
2024-02-04T14:20:46.733115-05:00 mini2 kernel: [61619.062300] CPU: 1
PID: 4307 Comm: http Tainted: G      D            6.1.0-17-686 #1
Debian 6.1.
69-1
2024-02-04T14:20:46.733118-05:00 mini2 kernel: [61619.062306] Hardware
name: Apple Computer, Inc. Macmini1,1/Mac-F4208EC8, BIOS
MM11.88Z.0055.B
08.0610121326 10/12/06
2024-02-04T14:20:46.733120-05:00 mini2 kernel: [61619.062308] EIP:
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.733123-05:00 mini2 kernel: [61619.065206] EIP:
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.733125-05:00 mini2 kernel: [61619.068083] Code: 44
cb bb 00 20 b1 d0 89 4d f0 b9 33 9a af d0 0f 45 cb ff 75 0c ff 75 08
57 52 5
6 50 ff 75 f0 51 68 a0 1f b1 d0 e8 8f 89 ff ff <0f> 0b 56 31 d2 b8 4a
20 b1 d0 ff 75 ec 8b 4d f0 e8 86 ff ff ff 56
2024-02-04T14:20:46.733129-05:00 mini2 kernel: [61619.070978] Code: 44
cb bb 00 20 b1 d0 89 4d f0 b9 33 9a af d0 0f 45 cb ff 75 0c ff 75 08
57 52 5
6 50 ff 75 f0 51 68 a0 1f b1 d0 e8 8f 89 ff ff <0f> 0b 56 31 d2 b8 4a
20 b1 d0 ff 75 ec 8b 4d f0 e8 86 ff ff ff 56
2024-02-04T14:20:46.733131-05:00 mini2 kernel: [61619.073817] EAX:
00000055 EBX: d0b12000 ECX: f6bef8c0 EDX: f6be9d50
2024-02-04T14:20:46.733134-05:00 mini2 kernel: [61619.073821] ESI:
d0b28ae8 EDI: d0b28ae8 EBP: f5941c80 ESP: f5941c4c
2024-02-04T14:20:46.733136-05:00 mini2 kernel: [61619.073824] DS: 007b
ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00010286
2024-02-04T14:20:46.733139-05:00 mini2 kernel: [61619.076690] EAX:
00000053 EBX: d0b12000 ECX: f6bcf8c0 EDX: f6bc9d50
2024-02-04T14:20:46.733141-05:00 mini2 kernel: [61619.079684] CR0:
80050033 CR2: 0107a000 CR3: 057fa000 CR4: 000006d0
2024-02-04T14:20:46.733144-05:00 mini2 kernel: [61619.082703] ESI:
d0b28ae8 EDI: d0b28ae8 EBP: c487fc64 ESP: c487fc30
2024-02-04T14:20:46.733147-05:00 mini2 kernel: [61619.085757] Call Trace:
2024-02-04T14:20:46.733150-05:00 mini2 kernel: [61619.085760]  ?
__die_body.cold+0x14/0x1a
2024-02-04T14:20:46.733152-05:00 mini2 kernel: [61619.088846] DS: 007b
ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00010246
2024-02-04T14:20:46.733155-05:00 mini2 kernel: [61619.091908]  ? __die+0x21/0x26
2024-02-04T14:20:46.733157-05:00 mini2 kernel: [61619.094973] CR0:
80050033 CR2: b7796014 CR3: 35594000 CR4: 000006d0
2024-02-04T14:20:46.733160-05:00 mini2 kernel: [61619.098003]  ? die+0x28/0x50
2024-02-04T14:20:46.733163-05:00 mini2 kernel: [61619.098009]  ?
do_trap+0xbb/0xe0
2024-02-04T14:20:46.754801-05:00 mini2 kernel: [61619.122043]  ?
do_error_trap+0x4c/0x60
2024-02-04T14:20:46.754830-05:00 mini2 kernel: [61619.122056]  ?
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.754833-05:00 mini2 kernel: [61619.122063]  ?
exc_overflow+0x40/0x40
2024-02-04T14:20:46.754835-05:00 mini2 kernel: [61619.122070]  ?
exc_invalid_op+0x44/0x60
2024-02-04T14:20:46.754838-05:00 mini2 kernel: [61619.122075]  ?
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.754841-05:00 mini2 kernel: [61619.122080]  ?
handle_exception+0x133/0x133
2024-02-04T14:20:46.754844-05:00 mini2 kernel: [61619.122086]  ?
exc_overflow+0x40/0x40
2024-02-04T14:20:46.754846-05:00 mini2 kernel: [61619.122090]  ?
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.754849-05:00 mini2 kernel: [61619.122095]  ?
exc_overflow+0x40/0x40
2024-02-04T14:20:46.754852-05:00 mini2 kernel: [61619.122099]  ?
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.754855-05:00 mini2 kernel: [61619.122105]
__check_object_size.cold+0xae/0xae
2024-02-04T14:20:46.754858-05:00 mini2 kernel: [61619.122111]  ?
kmap_high+0x6f/0x1f0
2024-02-04T14:20:46.754860-05:00 mini2 kernel: [61619.122120]
simple_copy_to_iter+0x1c/0x40
2024-02-04T14:20:46.754863-05:00 mini2 kernel: [61619.122126]
__skb_datagram_iter+0x163/0x320
2024-02-04T14:20:46.754866-05:00 mini2 kernel: [61619.122132]
skb_copy_datagram_iter+0x2d/0x80
2024-02-04T14:20:46.754869-05:00 mini2 kernel: [61619.122137]  ?
skb_free_datagram+0x20/0x20
2024-02-04T14:20:46.754871-05:00 mini2 kernel: [61619.122141]
tcp_recvmsg_locked+0x582/0x8a0
2024-02-04T14:20:46.754874-05:00 mini2 kernel: [61619.122151]
tcp_recvmsg+0x6f/0x1e0
2024-02-04T14:20:46.754877-05:00 mini2 kernel: [61619.122158]  ?
tcp_recv_timestamp+0x240/0x240
2024-02-04T14:20:46.754880-05:00 mini2 kernel: [61619.122163]
inet_recvmsg+0x54/0x130
2024-02-04T14:20:46.754883-05:00 mini2 kernel: [61619.122168]  ?
security_socket_recvmsg+0x41/0x60
2024-02-04T14:20:46.754885-05:00 mini2 kernel: [61619.122176]
sock_recvmsg+0x73/0x90
2024-02-04T14:20:46.754889-05:00 mini2 kernel: [61619.122182]  ?
ipip_gso_segment+0x30/0x30
2024-02-04T14:20:46.754892-05:00 mini2 kernel: [61619.122187]
sock_read_iter+0x84/0xe0
2024-02-04T14:20:46.754894-05:00 mini2 kernel: [61619.122194]
vfs_read+0x288/0x2c0
2024-02-04T14:20:46.754897-05:00 mini2 kernel: [61619.122203]
ksys_read+0xab/0xe0
2024-02-04T14:20:46.754900-05:00 mini2 kernel: [61619.122208]
__ia32_sys_read+0x15/0x20
2024-02-04T14:20:46.754903-05:00 mini2 kernel: [61619.122213]
__do_fast_syscall_32+0x68/0xb0
2024-02-04T14:20:46.754906-05:00 mini2 kernel: [61619.122219]  ?
switch_fpu_return+0x48/0xd0
2024-02-04T14:20:46.754909-05:00 mini2 kernel: [61619.122226]  ?
exit_to_user_mode_prepare+0x9d/0x170
2024-02-04T14:20:46.754912-05:00 mini2 kernel: [61619.122236]  ?
syscall_exit_to_user_mode+0x29/0x40
2024-02-04T14:20:46.754914-05:00 mini2 kernel: [61619.122242]  ?
__do_fast_syscall_32+0x72/0xb0
2024-02-04T14:20:46.754917-05:00 mini2 kernel: [61619.122247]  ?
exit_to_user_mode_prepare+0x9d/0x170
2024-02-04T14:20:46.754920-05:00 mini2 kernel: [61619.122252]  ?
sysvec_reboot+0x20/0x20
2024-02-04T14:20:46.754922-05:00 mini2 kernel: [61619.122257]
do_fast_syscall_32+0x29/0x60
2024-02-04T14:20:46.754925-05:00 mini2 kernel: [61619.122262]
do_SYSENTER_32+0x15/0x20
2024-02-04T14:20:46.754927-05:00 mini2 kernel: [61619.122267]
entry_SYSENTER_32+0x98/0xf1
2024-02-04T14:20:46.754930-05:00 mini2 kernel: [61619.122274] EIP: 0xb7eeb559
2024-02-04T14:20:46.754932-05:00 mini2 kernel: [61619.122279] Code: 10
05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01
00 00 0
0 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90
90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76
2024-02-04T14:20:46.754935-05:00 mini2 kernel: [61619.122283] EAX:
ffffffda EBX: 00000003 ECX: 01079dd0 EDX: 00010000
2024-02-04T14:20:46.754938-05:00 mini2 kernel: [61619.122286] ESI:
b773eff4 EDI: 00000000 EBP: 01078b70 ESP: bf973da0
2024-02-04T14:20:46.754941-05:00 mini2 kernel: [61619.122289] DS: 007b
ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000246
2024-02-04T14:20:46.754944-05:00 mini2 kernel: [61619.122296] Modules
linked in: tls tun xt_tcpudp i915 ath5k xt_conntrack snd_hda_codec_idt
nf_con
ntrack snd_hda_codec_generic nf_defrag_ipv6 ledtrig_audio
nf_defrag_ipv4 ath coretemp drm_buddy snd_hda_intel snd_intel_dspcfg
drm_display_helper k
vm_intel nft_compat nf_tables cec snd_intel_sdw_acpi mac80211 rc_core
kvm ttm applesmc irqbypass snd_hda_codec drm_kms_helper libarc4
i2c_algo_bit
iTCO_wdt fb_sys_fops cfg80211 snd_hda_core intel_pmc_bxt snd_hwdep
iTCO_vendor_support syscopyarea sysfillrect watchdog snd_pcm sysimgblt
pcspkr nf
netlink snd_timer at24 rfkill snd soundcore appledisplay sg
apple_mfi_fastcharge evdev tpm_infineon button acpi_cpufreq
binfmt_misc firewire_sbp2 e
fi_pstore drm loop dm_mod fuse configfs ip_tables x_tables autofs4 xfs
libcrc32c crc32c_generic hid_apple hid_appleir hid_generic usbhid hid
sd_mod
t10_pi crc64_rocksoft sr_mod crc64 cdrom crc_t10dif crct10dif_generic
crct10dif_common ata_generic ahci ata_piix libahci libata scsi_mod
ehci_pci
firewire_ohci
2024-02-04T14:20:46.754948-05:00 mini2 kernel: [61619.122432]
firewire_core uhci_hcd ehci_hcd i2c_i801 lpc_ich i2c_smbus scsi_common
crc_itu_t usb
core usb_common sky2 video wmi
2024-02-04T14:20:46.754951-05:00 mini2 kernel: [61619.122479] ---[ end
trace 0000000000000000 ]---
2024-02-04T14:20:46.754953-05:00 mini2 kernel: [61619.122483] EIP:
usercopy_abort+0x65/0x67
2024-02-04T14:20:46.754956-05:00 mini2 kernel: [61619.122488] Code: 44
cb bb 00 20 b1 d0 89 4d f0 b9 33 9a af d0 0f 45 cb ff 75 0c ff 75 08
57 52 5
6 50 ff 75 f0 51 68 a0 1f b1 d0 e8 8f 89 ff ff <0f> 0b 56 31 d2 b8 4a
20 b1 d0 ff 75 ec 8b 4d f0 e8 86 ff ff ff 56
2024-02-04T14:20:46.754959-05:00 mini2 kernel: [61619.122491] EAX:
00000053 EBX: d0b12000 ECX: f6bcf8c0 EDX: f6bc9d50
2024-02-04T14:20:46.754962-05:00 mini2 kernel: [61619.122495] ESI:
d0b28ae8 EDI: d0b28ae8 EBP: c487fc64 ESP: c487fc30
2024-02-04T14:20:46.754965-05:00 mini2 kernel: [61619.122498] DS: 007b
ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 00010246
2024-02-04T14:20:46.754967-05:00 mini2 kernel: [61619.122502] CR0:
80050033 CR2: 0107a000 CR3: 057fa000 CR4: 000006d0

On Tue, Nov 21, 2023 at 11:13 AM Jiann-Ming Su <sujiannm...@gmail.com> wrote:
>
> Looks like it's unrelated to openvpn; running openvpn 2.6.3-1+deb12u2
> and the mm/usercopy still happens.  I just reported 1056356 for apt
> since this happens pretty reliably during apt-get update.
>
>
> On Tue, Nov 21, 2023 at 9:53 AM Jiann-Ming Su <sujiannm...@gmail.com> wrote:
> >
> > Could this issue be related to CVE-2023-46850 mentioned in bug
> > 1055805?  OpenVPN is running on this particular box that suffers from
> > this problem.
> >
> > On Mon, Nov 6, 2023 at 11:36 PM Jiann-Ming Su <sujiannm...@gmail.com> wrote:
> > >
> > > and 6.1.0-13-686-pae:
> > >
> > > [348871.341900] usercopy: Kernel memory exposure attempt detected from
> > > kmap (offset 1270, size 15114)!
> > > [348871.342021] ------------[ cut here ]------------
> > > [348871.342024] kernel BUG at mm/usercopy.c:101!
> > > [348871.342068] invalid opcode: 0000 [#1] PREEMPT SMP PTI
> > > [348871.342118] CPU: 0 PID: 12867 Comm: http Not tainted
> > > 6.1.0-13-686-pae #1  Debian 6.1.55-1
> > > [348871.342186] Hardware name: Apple Computer, Inc.
> > > Macmini1,1/Mac-F4208EC8, BIOS     MM11.88Z.0055.B0
> > > 8.0610121326 10/12/06
> > > [348871.342259] EIP: usercopy_abort+0x65/0x67
> > > [348871.342302] Code: 44 cb bb b8 af b3 c6 89 4d f0 b9 b6 2a b2 c6 0f
> > > 45 cb ff 75 0c ff 75 08 57 52 56
> > > 50 ff 75 f0 51 68 58 af b3 c6 e8 40 8d ff ff <0f> 0b 56 31 d2 b8 02 b0
> > > b3 c6 ff 75 ec 8b 4d f0 e8 86
> > > ff ff ff 56
> > > [348871.342423] EAX: 00000056 EBX: c6b3afb8 ECX: 00000001 EDX: 80000001
> > > [348871.342472] ESI: c6b51abc EDI: c6b51abc EBP: c4255c18 ESP: c4255be4
> > > [348871.342520] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 
> > > 00010286
> > > [348871.342573] CR0: 80050033 CR2: b776ce90 CR3: 34fe8000 CR4: 000006f0
> > > [348871.342621] Call Trace:
> > > [348871.342649]  ? __die_body.cold+0x14/0x1a
> > > [348871.342687]  ? __die+0x21/0x26
> > > [348871.342717]  ? die+0x28/0x50
> > > [348871.342749]  ? do_trap+0xbb/0xe0
> > > [348871.342780]  ? do_error_trap+0x4c/0x60
> > > [348871.342814]  ? usercopy_abort+0x65/0x67
> > > [348871.342851]  ? exc_overflow+0x40/0x40
> > > [348871.342892]  ? exc_invalid_op+0x44/0x60
> > > [348871.342929]  ? usercopy_abort+0x65/0x67
> > > [348871.342966]  ? handle_exception+0x133/0x133
> > > [348871.343009]  ? exc_overflow+0x40/0x40
> > > [348871.343046]  ? usercopy_abort+0x65/0x67
> > > [348871.343082]  ? exc_overflow+0x40/0x40
> > > [348871.343117]  ? usercopy_abort+0x65/0x67
> > > [348871.343156]  __check_object_size.cold+0xae/0xae
> > > [348871.343199]  simple_copy_to_iter+0x1c/0x40
> > > [348871.343237]  __skb_datagram_iter+0x163/0x320
> > > [348871.343276]  skb_copy_datagram_iter+0x2d/0x80
> > > [348871.343316]  ? skb_free_datagram+0x20/0x20
> > > [348871.343353]  tcp_recvmsg_locked+0x30e/0x890
> > > [348871.343400]  tcp_recvmsg+0x6f/0x1e0
> > > [348871.343437]  ? tcp_recv_timestamp+0x240/0x240
> > > [348871.343476]  inet_recvmsg+0x54/0x130
> > > [348871.343509]  ? security_socket_recvmsg+0x41/0x60
> > > [348871.343553]  sock_recvmsg+0x73/0x90
> > > [348871.343589]  ? ipip_gso_segment+0x30/0x30
> > > [348871.343625]  sock_read_iter+0x84/0xe0
> > > [348871.343664]  vfs_read+0x288/0x2c0
> > > [348871.343702]  ksys_read+0xab/0xe0
> > > [348871.343734]  __ia32_sys_read+0x15/0x20
> > > [348871.343768]  __do_fast_syscall_32+0x68/0xb0
> > > [348871.343807]  ? fpregs_assert_state_consistent+0x25/0x50
> > > [348871.345275]  ? exit_to_user_mode_prepare+0x41/0x1a0
> > > [348871.346746]  ? syscall_exit_to_user_mode+0x29/0x40
> > > [348871.348214]  ? __do_fast_syscall_32+0x72/0xb0
> > > [348871.349630]  ? vfs_write+0x105/0x3c0
> > > [348871.350996]  ? debug_smp_processor_id+0x12/0x20
> > > [348871.352388]  ? fpregs_assert_state_consistent+0x25/0x50
> > > [348871.353744]  ? exit_to_user_mode_prepare+0x41/0x1a0
> > > [348871.355064]  ? syscall_exit_to_user_mode+0x29/0x40
> > > [348871.356350]  ? __ia32_sys_write+0x15/0x20
> > > [348871.357571]  ? __do_fast_syscall_32+0x72/0xb0
> > > [348871.358715]  ? fpregs_assert_state_consistent+0x25/0x50
> > > [348871.359832]  ? exit_to_user_mode_prepare+0x41/0x1a0
> > > [348871.360933]  ? irqentry_exit_to_user_mode+0x16/0x20
> > > [348871.362024]  do_fast_syscall_32+0x29/0x60
> > > [348871.363100]  do_SYSENTER_32+0x15/0x20
> > > [348871.364153]  entry_SYSENTER_32+0x98/0xf1
> > > [348871.365213] EIP: 0xb7f25559
> > > [348871.366273] Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01
> > > 10 07 03 74 b0 01 10 08 03 74 d8
> > > 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90
> > > 8d 76 00 58 b8 77 00 00 00 cd
> > > 80 90 8d 76
> > > [348871.368699] EAX: ffffffda EBX: 00000003 ECX: 01a19d4f EDX: 0000f9f1
> > > [348871.369982] ESI: b721cff4 EDI: 00000000 EBP: 01a184e0 ESP: bf9f19c0
> > > [348871.371287] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 
> > > 00000246
> > > [348871.372627] Modules linked in: tls tun xt_tcpudp xt_conntrack
> > > snd_hda_codec_idt snd_hda_codec_gene
> > > ric nf_conntrack ledtrig_audio nf_defrag_ipv6 snd_hda_intel
> > > nf_defrag_ipv4 i915 snd_intel_dspcfg nft_c
> > > ompat drm_buddy nf_tables snd_intel_sdw_acpi drm_display_helper
> > > snd_hda_codec iTCO_wdt cec hid_appleir
> > > intel_pmc_bxt rc_core iTCO_vendor_support coretemp ttm snd_hda_core
> > > kvm_intel snd_hwdep drm_kms_helpe
> > > r watchdog apple_mfi_fastcharge snd_pcm ath5k kvm i2c_algo_bit ath
> > > mac80211 snd_timer snd nfnetlink li
> > > barc4 applesmc soundcore cfg80211 irqbypass rfkill at24 tpm_infineon
> > > pcspkr button acpi_cpufreq sg evd
> > > ev binfmt_misc firewire_sbp2 dm_mod drm efi_pstore dax loop fuse
> > > configfs ip_tables x_tables autofs4 x
> > > fs libcrc32c crc32c_generic hid_generic usbhid hid sd_mod t10_pi
> > > crc64_rocksoft crc64 sr_mod crc_t10di
> > > f cdrom crct10dif_generic crct10dif_common ata_generic ahci libahci
> > > ata_piix libata ehci_pci firewire_
> > > ohci uhci_hcd ehci_hcd scsi_mod firewire_core usbcore video lpc_ich
> > > i2c_i801 crc_itu_t
> > > [348871.372848]  sky2 i2c_smbus scsi_common usb_common wmi
> > > [348871.387161] ---[ end trace 0000000000000000 ]---
> > > [348871.389101] EIP: usercopy_abort+0x65/0x67
> > > [348871.390909] Code: 44 cb bb b8 af b3 c6 89 4d f0 b9 b6 2a b2 c6 0f
> > > 45 cb ff 75 0c ff 75 08 57 52 56
> > > 50 ff 75 f0 51 68 58 af b3 c6 e8 40 8d ff ff <0f> 0b 56 31 d2 b8 02 b0
> > > b3 c6 ff 75 ec 8b 4d f0 e8 86
> > > ff ff ff 56
> > > [348871.394720] EAX: 00000056 EBX: c6b3afb8 ECX: 00000001 EDX: 80000001
> > > [348871.396704] ESI: c6b51abc EDI: c6b51abc EBP: c4255c18 ESP: c4255be4
> > > [348871.398750] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 
> > > 00010286
> > > [348871.400770] CR0: 80050033 CR2: b776ce90 CR3: 34fe8000 CR4: 000006f0
> > > [348871.906761] usercopy: Kernel memory exposure attempt detected from
> > > kmap (offset 0, size 16384)!
> > > [348871.909526] ------------[ cut here ]------------
> > > [348871.912263] kernel BUG at mm/usercopy.c:101!
> > > [348871.915017] invalid opcode: 0000 [#2] PREEMPT SMP PTI
> > > [348871.917723] CPU: 0 PID: 12868 Comm: http Tainted: G      D
> > >    6.1.0-13-686-pae #1  Debian
> > > 6.1.55-1
> > > [348871.920501] Hardware name: Apple Computer, Inc.
> > > Macmini1,1/Mac-F4208EC8, BIOS     MM11.88Z.0055.B0
> > > 8.0610121326 10/12/06
> > > [348871.923306] EIP: usercopy_abort+0x65/0x67
> > > [348871.925735] Code: 44 cb bb b8 af b3 c6 89 4d f0 b9 b6 2a b2 c6 0f
> > > 45 cb ff 75 0c ff 75 08 57 52 56
> > > 50 ff 75 f0 51 68 58 af b3 c6 e8 40 8d ff ff <0f> 0b 56 31 d2 b8 02 b0
> > > b3 c6 ff 75 ec 8b 4d f0 e8 86
> > > ff ff ff 56
> > > [348871.930596] EAX: 00000053 EBX: c6b3afb8 ECX: 00000001 EDX: 80000001
> > > [348871.933081] ESI: c6b51abc EDI: c6b51abc EBP: c32b9c8c ESP: c32b9c58
> > > [348871.935619] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 
> > > 00010286
> > > [348871.938691] CR0: 80050033 CR2: b4822000 CR3: 34ea4000 CR4: 000006f0
> > > [348871.941807] Call Trace:
> > > [348871.944892]  ? __die_body.cold+0x14/0x1a
> > > [348871.947983]  ? __die+0x21/0x26
> > > [348871.951007]  ? die+0x28/0x50
> > > [348871.954065]  ? do_trap+0xbb/0xe0
> > > [348871.957124]  ? do_error_trap+0x4c/0x60
> > > [348871.959756]  ? usercopy_abort+0x65/0x67
> > > [348871.962170]  ? exc_overflow+0x40/0x40
> > > [348871.964550]  ? exc_invalid_op+0x44/0x60
> > > [348871.966891]  ? usercopy_abort+0x65/0x67
> > > [348871.969231]  ? handle_exception+0x133/0x133
> > > [348871.971571]  ? exc_overflow+0x40/0x40
> > > [348871.973909]  ? usercopy_abort+0x65/0x67
> > > [348871.976174]  ? exc_overflow+0x40/0x40
> > > [348871.978356]  ? usercopy_abort+0x65/0x67
> > > [348871.980506]  __check_object_size.cold+0xae/0xae
> > > [348871.982644]  simple_copy_to_iter+0x1c/0x40
> > > [348871.984762]  __skb_datagram_iter+0x163/0x320
> > > [348871.986840]  skb_copy_datagram_iter+0x2d/0x80
> > > [348871.988872]  ? skb_free_datagram+0x20/0x20
> > > [348871.990861]  tcp_recvmsg_locked+0x30e/0x890
> > > [348871.992810]  tcp_recvmsg+0x6f/0x1e0
> > > [348871.994703]  ? tcp_recv_timestamp+0x240/0x240
> > > [348871.996551]  inet_recvmsg+0x54/0x130
> > > [348871.998348]  ? security_socket_recvmsg+0x41/0x60
> > > [348872.000109]  sock_recvmsg+0x73/0x90
> > > [348872.001823]  ? ipip_gso_segment+0x30/0x30
> > > [348872.003530]  sock_read_iter+0x84/0xe0
> > > [348872.005232]  vfs_read+0x288/0x2c0
> > > [348872.006858]  ksys_read+0xab/0xe0
> > > [348872.008402]  __ia32_sys_read+0x15/0x20
> > > [348872.009908]  __do_fast_syscall_32+0x68/0xb0
> > > [348872.011400]  ? __this_cpu_preempt_check+0xf/0x11
> > > [348872.012880]  ? fpregs_restore_userregs+0x4d/0xd0
> > > [348872.014344]  ? switch_fpu_return+0xd/0x10
> > > [348872.015770]  ? exit_to_user_mode_prepare+0x14d/0x1a0
> > > [348872.017178]  ? syscall_exit_to_user_mode+0x29/0x40
> > > [348872.018584]  ? __do_fast_syscall_32+0x72/0xb0
> > > [348872.019987]  ? irqentry_exit_to_user_mode+0x16/0x20
> > > [348872.021366]  do_fast_syscall_32+0x29/0x60
> > > [348872.022710]  do_SYSENTER_32+0x15/0x20
> > > [348872.024011]  entry_SYSENTER_32+0x98/0xf1
> > > [348872.025240] EIP: 0xb7f7a559
> > > [348872.026388] Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01
> > > 10 07 03 74 b0 01 10 08 03 74 d8
> > > 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90
> > > 8d 76 00 58 b8 77 00 00 00 cd
> > > 80 90 8d 76
> > > [348872.028871] EAX: ffffffda EBX: 00000003 ECX: 0055db56 EDX: 0000ff9a
> > > [348872.030151] ESI: b721cff4 EDI: 00000000 EBP: 0055caf0 ESP: bfb09e10
> > > [348872.031436] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 
> > > 00000246
> > > [348872.032725] Modules linked in: tls tun xt_tcpudp xt_conntrack
> > > snd_hda_codec_idt snd_hda_codec_gene
> > > ric nf_conntrack ledtrig_audio nf_defrag_ipv6 snd_hda_intel
> > > nf_defrag_ipv4 i915 snd_intel_dspcfg nft_c
> > > ompat drm_buddy nf_tables snd_intel_sdw_acpi drm_display_helper
> > > snd_hda_codec iTCO_wdt cec hid_appleir
> > > intel_pmc_bxt rc_core iTCO_vendor_support coretemp ttm snd_hda_core
> > > kvm_intel snd_hwdep drm_kms_helpe
> > > r watchdog apple_mfi_fastcharge snd_pcm ath5k kvm i2c_algo_bit ath
> > > mac80211 snd_timer snd nfnetlink li
> > > barc4 applesmc soundcore cfg80211 irqbypass rfkill at24 tpm_infineon
> > > pcspkr button acpi_cpufreq sg evd
> > > ev binfmt_misc firewire_sbp2 dm_mod drm efi_pstore dax loop fuse
> > > configfs ip_tables x_tables autofs4 x
> > > fs libcrc32c crc32c_generic hid_generic usbhid hid sd_mod t10_pi
> > > crc64_rocksoft crc64 sr_mod crc_t10di
> > > f cdrom crct10dif_generic crct10dif_common ata_generic ahci libahci
> > > ata_piix libata ehci_pci firewire_
> > > ohci uhci_hcd ehci_hcd scsi_mod firewire_core usbcore video lpc_ich
> > > i2c_i801 crc_itu_t
> > > [348872.032945]  sky2 i2c_smbus scsi_common usb_common wmi
> > > [348872.047003] ---[ end trace 0000000000000000 ]---
> > > [348872.048977] EIP: usercopy_abort+0x65/0x67
> > > [348872.050720] Code: 44 cb bb b8 af b3 c6 89 4d f0 b9 b6 2a b2 c6 0f
> > > 45 cb ff 75 0c ff 75 08 57 52 56
> > > 50 ff 75 f0 51 68 58 af b3 c6 e8 40 8d ff ff <0f> 0b 56 31 d2 b8 02 b0
> > > b3 c6 ff 75 ec 8b 4d f0 e8 86
> > > ff ff ff 56
> > > [348872.054483] EAX: 00000056 EBX: c6b3afb8 ECX: 00000001 EDX: 80000001
> > > [348872.056446] ESI: c6b51abc EDI: c6b51abc EBP: c4255c18 ESP: c4255be4
> > > [348872.058398] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 
> > > 00010286
> > > [348872.060380] CR0: 80050033 CR2: b4822000 CR3: 34ea4000 CR4: 000006f0
> > >
> > >
> > > On Tue, Sep 12, 2023 at 11:08 AM Jiann-Ming Su <sujiannm...@gmail.com> 
> > > wrote:
> > > >
> > > > I spoke too soon... it's happening on 6.1.0-12-686 as well:
> > > >
> > > > # apt-get update
> > > > Get:1 http://security.debian.org/debian-security 
> > > > bookworm-security/updates InRelease [48.0 kB]
> > > > 0% [Waiting for headers] [1 InRelease 0 B/48.0 kB 0%]
> > > > Message from syslogd@mini1 at Sep 12 11:07:33 ...
> > > >  kernel:[123507.826321] usercopy: Kernel memory exposure attempt 
> > > > detected from kmap (offset 0, size 16384)!
> > > > Hit:2 http://ftp.us.debian.org/debian bookworm InRelease
> > > > Get:3 http://ftp.us.debian.org/debian bookworm-updates InRelease [52.1 
> > > > kB]
> > > > 0% [3 InRelease 0 B/52.1 kB 0%] [1 InRelease 0 B/48.0 kB 0%]
> > > > Message from syslogd@mini1 at Sep 12 11:07:33 ...
> > > >  kernel:[123508.220983] usercopy: Kernel memory exposure attempt 
> > > > detected from kmap (offset 0, size 16384)!
> > > >
> > > > [123452.464498] ------------[ cut here ]------------
> > > > [123452.464530] kernel BUG at mm/usercopy.c:101!
> > > > [123452.464566] invalid opcode: 0000 [#1] PREEMPT SMP
> > > > [123452.464606] CPU: 1 PID: 7495 Comm: http Not tainted 6.1.0-12-686 #1 
> > > >  Debian 6.1.52-1
> > > > [123452.464653] Hardware name: Apple Computer, Inc. 
> > > > Macmini1,1/Mac-F4208EC8, BIOS     MM11.88Z.0055.B08.0610121326 10/12/06
> > > > [123452.464729] EIP: usercopy_abort+0x65/0x67
> > > > [123452.464772] Code: 44 cb bb d8 d9 b1 cc 89 4d f0 b9 12 55 b0 cc 0f 
> > > > 45 cb ff 75 0c ff 75 08 57 52 56 50 ff 75 f0 51 68 78 d9 b1 cc e8 8a 8e 
> > > > ff ff <0f> 0b 56 31 d2 b8 22 da b1 cc ff 75 ec 8b 4d f0 e8 86 ff ff ff 
> > > > 56
> > > > [123452.464886] EAX: 00000052 EBX: ccb1d9d8 ECX: 00000001 EDX: 00000001
> > > > [123452.464930] ESI: ccb3449c EDI: ccb3449c EBP: c349fce0 ESP: c349fcac
> > > > [123452.464974] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 
> > > > 00010246
> > > > [123452.465024] CR0: 80050033 CR2: 01be6000 CR3: 0e3d2000 CR4: 000006d0
> > > > [123452.465068] Call Trace:
> > > > [123452.465093]  ? __die_body.cold+0x14/0x1a
> > > > [123452.465126]  ? __die+0x21/0x26
> > > > [123452.465152]  ? die+0x28/0x50
> > > > [123452.465179]  ? do_trap+0xbb/0xe0
> > > > [123452.465206]  ? do_error_trap+0x4c/0x60
> > > > [123452.465235]  ? usercopy_abort+0x65/0x67
> > > > [123452.465271]  ? exc_overflow+0x40/0x40
> > > > [123452.465303]  ? exc_invalid_op+0x44/0x60
> > > > [123452.465338]  ? usercopy_abort+0x65/0x67
> > > > [123452.465372]  ? handle_exception+0x133/0x133
> > > > [123452.465409]  ? up_read+0x7b/0x80
> > > > [123452.465436]  ? exc_overflow+0x40/0x40
> > > > [123452.465467]  ? usercopy_abort+0x65/0x67
> > > > [123452.465501]  ? exc_overflow+0x40/0x40
> > > > [123452.465532]  ? usercopy_abort+0x65/0x67
> > > > [123452.465565]  __check_object_size.cold+0xae/0xae
> > > > [123452.465605]  ? kmap_high+0x6f/0x1f0
> > > > [123452.465639]  simple_copy_to_iter+0x1c/0x40
> > > > [123452.465670]  __skb_datagram_iter+0x163/0x320
> > > > [123452.465703]  skb_copy_datagram_iter+0x2d/0x80
> > > > [123452.465738]  ? skb_free_datagram+0x20/0x20
> > > > [123452.465768]  tcp_recvmsg_locked+0x30e/0x890
> > > > [123452.465806]  tcp_recvmsg+0x6f/0x1e0
> > > > [123452.465839]  ? tcp_recv_timestamp+0x240/0x240
> > > > [123452.465876]  inet_recvmsg+0x54/0x130
> > > > [123452.465906]  ? security_socket_recvmsg+0x41/0x60
> > > > [123452.465942]  sock_recvmsg+0x73/0x90
> > > > [123452.465978]  ? ipip_gso_segment+0x30/0x30
> > > > [123452.466015]  sock_read_iter+0x84/0xe0
> > > > [123452.466050]  vfs_read+0x288/0x2c0
> > > > [123452.466083]  ksys_read+0xab/0xe0
> > > > [123452.466110]  __ia32_sys_read+0x15/0x20
> > > > [123452.466138]  __do_fast_syscall_32+0x68/0xb0
> > > > [123452.466171]  ? syscall_exit_to_user_mode+0x29/0x40
> > > > [123452.466205]  ? __do_fast_syscall_32+0x72/0xb0
> > > > [123452.466237]  ? exit_to_user_mode_prepare+0x14d/0x1a0
> > > > [123452.466273]  ? sysvec_reboot+0x30/0x30
> > > > [123452.466302]  do_fast_syscall_32+0x29/0x60
> > > > [123452.466334]  do_SYSENTER_32+0x15/0x20
> > > > [123452.466369]  entry_SYSENTER_32+0x98/0xf1
> > > > [123452.466399] EIP: 0xb7f3d559
> > > > [123452.466425] Code: 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 
> > > > b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 
> > > > cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 
> > > > 76
> > > > [123452.466530] EAX: ffffffda EBX: 00000003 ECX: 01be5df0 EDX: 00010000
> > > > [123452.466573] ESI: b778eff4 EDI: 00000000 EBP: 01be4bb0 ESP: bf8d9b50
> > > > [123452.466617] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 
> > > > 00000246
> > > > [123452.466670] Modules linked in: tls tun ath5k i915 ath 
> > > > snd_hda_codec_idt mac80211 snd_hda_codec_generic drm_buddy 
> > > > ledtrig_audio drm_display_helper libarc4 snd_hda_intel cec 
> > > > snd_intel_dspcfg kvm_intel snd_intel_sdw_acpi rc_core cfg80211 
> > > > snd_hda_codec ttm kvm iTCO_wdt intel_pmc_bxt iTCO_vendor_support 
> > > > snd_hda_core watchdog applesmc snd_hwdep drm_kms_helper at24 snd_pcm 
> > > > xt_tcpudp irqbypass i2c_algo_bit snd_timer pcspkr xt_conntrack rng_core 
> > > > snd fb_sys_fops rfkill nf_conntrack syscopyarea soundcore sysfillrect 
> > > > sysimgblt nf_defrag_ipv6 tpm_infineon nf_defrag_ipv4 button 
> > > > acpi_cpufreq nft_compat apple_mfi_fastcharge evdev nf_tables sg 
> > > > nfnetlink binfmt_misc drm loop fuse efi_pstore dm_mod configfs 
> > > > ip_tables x_tables autofs4 xfs libcrc32c crc32c_generic hid_apple 
> > > > hid_appleir hid_generic usbhid hid sd_mod t10_pi crc64_rocksoft crc64 
> > > > sr_mod crc_t10dif cdrom crct10dif_generic crct10dif_common ata_generic 
> > > > ata_piix ahci libahci libata firewire_ohci scsi_mod firewire_core 
> > > > ehci_pci i2c_i801 i2c_smbus
> > > > [123452.466844]  scsi_common lpc_ich uhci_hcd ehci_hcd crc_itu_t sky2 
> > > > usbcore usb_common video wmi
> > > > [123452.467367] ---[ end trace 0000000000000000 ]---
> > > > [123452.467409] EIP: usercopy_abort+0x65/0x67
> > > > [123452.467449] Code: 44 cb bb d8 d9 b1 cc 89 4d f0 b9 12 55 b0 cc 0f 
> > > > 45 cb ff 75 0c ff 75 08 57 52 56 50 ff 75 f0 51 68 78 d9 b1 cc e8 8a 8e 
> > > > ff ff <0f> 0b 56 31 d2 b8 22 da b1 cc ff 75 ec 8b 4d f0 e8 86 ff ff ff 
> > > > 56
> > > > [123452.467578] EAX: 00000052 EBX: ccb1d9d8 ECX: 00000001 EDX: 00000001
> > > > [123452.467621] ESI: ccb3449c EDI: ccb3449c EBP: c349fce0 ESP: c349fcac
> > > > [123452.470914] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 
> > > > 00010246
> > > > [123452.474151] CR0: 80050033 CR2: 01be6000 CR3: 0e3d2000 CR4: 000006d0
> > > > [123452.491067] usercopy: Kernel memory exposure attempt detected from 
> > > > kmap (offset 0, size 16384)!
> > > > [123452.494366] ------------[ cut here ]------------
> > > > [123452.497541] kernel BUG at mm/usercopy.c:101!
> > > > [123452.500755] invalid opcode: 0000 [#2] PREEMPT SMP
> > > > [123452.503769] CPU: 0 PID: 7496 Comm: http Tainted: G      D           
> > > >  6.1.0-12-686 #1  Debian 6.1.52-1
> > > > [123452.506882] Hardware name: Apple Computer, Inc. 
> > > > Macmini1,1/Mac-F4208EC8, BIOS     MM11.88Z.0055.B08.0610121326 10/12/06
> > > > [123452.510050] EIP: usercopy_abort+0x65/0x67
> > > > [123452.513156] Code: 44 cb bb d8 d9 b1 cc 89 4d f0 b9 12 55 b0 cc 0f 
> > > > 45 cb ff 75 0c ff 75 08 57 52 56 50 ff 75 f0 51 68 78 d9 b1 cc e8 8a 8e 
> > > > ff ff <0f> 0b 56 31 d2 b8 22 da b1 cc ff 75 ec 8b 4d f0 e8 86 ff ff ff 
> > > > 56
> > > > [123452.516483] EAX: 00000053 EBX: ccb1d9d8 ECX: 00000001 EDX: 00000001
> > > > [123452.519769] ESI: ccb3449c EDI: ccb3449c EBP: f5dabc98 ESP: f5dabc64
> > > > [123452.523115] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 
> > > > 00010246
> > > > [123452.526353] CR0: 80050033 CR2: 01939768 CR3: 12618000 CR4: 000006d0
> > > > [123452.529363] Call Trace:
> > > > [123452.532450]  ? __die_body.cold+0x14/0x1a
> > > > [123452.535541]  ? __die+0x21/0x26
> > > > [123452.538526]  ? die+0x28/0x50
> > > > [123452.541594]  ? do_trap+0xbb/0xe0
> > > > [123452.544641]  ? do_error_trap+0x4c/0x60
> > > > [123452.547592]  ? usercopy_abort+0x65/0x67
> > > > [123452.550655]  ? exc_overflow+0x40/0x40
> > > > [123452.553725]  ? exc_invalid_op+0x44/0x60
> > > > [123452.556737]  ? usercopy_abort+0x65/0x67
> > > > [123452.559776]  ? handle_exception+0x133/0x133
> > > > [123452.562907]  ? up_read+0x7b/0x80
> > > > [123452.565945]  ? exc_overflow+0x40/0x40
> > > > [123452.569024]  ? usercopy_abort+0x65/0x67
> > > > [123452.572062]  ? exc_overflow+0x40/0x40
> > > > [123452.575100]  ? usercopy_abort+0x65/0x67
> > > > [123452.578205]  __check_object_size.cold+0xae/0xae
> > > > [123452.581307]  ? kmap_high+0x6f/0x1f0
> > > > [123452.584350]  simple_copy_to_iter+0x1c/0x40
> > > > [123452.587542]  __skb_datagram_iter+0x163/0x320
> > > > [123452.590684]  skb_copy_datagram_iter+0x2d/0x80
> > > > [123452.593774]  ? skb_free_datagram+0x20/0x20
> > > > [123452.596873]  tcp_recvmsg_locked+0x30e/0x890
> > > > [123452.599950]  tcp_recvmsg+0x6f/0x1e0
> > > > [123452.602970]  ? tcp_recv_timestamp+0x240/0x240
> > > > [123452.606107]  inet_recvmsg+0x54/0x130
> > > > [123452.609225]  ? security_socket_recvmsg+0x41/0x60
> > > > [123452.612271]  sock_recvmsg+0x73/0x90
> > > > [123452.615302]  ? ipip_gso_segment+0x30/0x30
> > > > [123452.618338]  sock_read_iter+0x84/0xe0
> > > > [123452.621643]  vfs_read+0x288/0x2c0
> > > > [123452.624773]  ksys_read+0xab/0xe0
> > > > [123452.627793]  __ia32_sys_read+0x15/0x20
> > > > [123452.630837]  __do_fast_syscall_32+0x68/0xb0
> > > > [123452.633878]  ? syscall_exit_to_user_mode+0x29/0x40
> > > > [123452.636891]  ? __ia32_sys_read+0x15/0x20
> > > > [123452.639939]  ? __do_fast_syscall_32+0x72/0xb0
> > > > [123452.643011]  ? debug_smp_processor_id+0x12/0x20
> > > > [123452.646044]  ? fpregs_assert_state_consistent+0x25/0x50
> > > > [123452.649102]  ? exit_to_user_mode_prepare+0x41/0x1a0
> > > > [123452.652181]  ? irqentry_exit_to_user_mode+0x16/0x20
> > > > [123452.655344]  do_fast_syscall_32+0x29/0x60
> > > > [123452.658420]  do_SYSENTER_32+0x15/0x20
> > > > [123452.661510]  entry_SYSENTER_32+0x98/0xf1
> > > > [123452.664587] EIP: 0xb7fc8559
> > > > [123452.667686] Code: 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 
> > > > b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 
> > > > cd 80 <5d> 5a 59 c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 
> > > > 76
> > > > [123452.670822] EAX: ffffffda EBX: 00000003 ECX: 01abe328 EDX: 0000fe88
> > > > [123452.673910] ESI: b7819ff4 EDI: 00000000 EBP: 01abd3c0 ESP: bfee4b00
> > > > [123452.677014] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 
> > > > 00000246
> > > > [123452.680110] Modules linked in: tls tun ath5k i915 ath 
> > > > snd_hda_codec_idt mac80211 snd_hda_codec_generic drm_buddy 
> > > > ledtrig_audio drm_display_helper libarc4 snd_hda_intel cec 
> > > > snd_intel_dspcfg kvm_intel snd_intel_sdw_acpi rc_core cfg80211 
> > > > snd_hda_codec ttm kvm iTCO_wdt intel_pmc_bxt iTCO_vendor_support 
> > > > snd_hda_core watchdog applesmc snd_hwdep drm_kms_helper at24 snd_pcm 
> > > > xt_tcpudp irqbypass i2c_algo_bit snd_timer pcspkr xt_conntrack rng_core 
> > > > snd fb_sys_fops rfkill nf_conntrack syscopyarea soundcore sysfillrect 
> > > > sysimgblt nf_defrag_ipv6 tpm_infineon nf_defrag_ipv4 button 
> > > > acpi_cpufreq nft_compat apple_mfi_fastcharge evdev nf_tables sg 
> > > > nfnetlink binfmt_misc drm loop fuse efi_pstore dm_mod configfs 
> > > > ip_tables x_tables autofs4 xfs libcrc32c crc32c_generic hid_apple 
> > > > hid_appleir hid_generic usbhid hid sd_mod t10_pi crc64_rocksoft crc64 
> > > > sr_mod crc_t10dif cdrom crct10dif_generic crct10dif_common ata_generic 
> > > > ata_piix ahci libahci libata firewire_ohci scsi_mod firewire_core 
> > > > ehci_pci i2c_i801 i2c_smbus
> > > > [123452.680271]  scsi_common lpc_ich uhci_hcd ehci_hcd crc_itu_t sky2 
> > > > usbcore usb_common video wmi
> > > > [123452.699090] ---[ end trace 0000000000000000 ]---
> > > > [123452.702138] EIP: usercopy_abort+0x65/0x67
> > > > [123452.705202] Code: 44 cb bb d8 d9 b1 cc 89 4d f0 b9 12 55 b0 cc 0f 
> > > > 45 cb ff 75 0c ff 75 08 57 52 56 50 ff 75 f0 51 68 78 d9 b1 cc e8 8a 8e 
> > > > ff ff <0f> 0b 56 31 d2 b8 22 da b1 cc ff 75 ec 8b 4d f0 e8 86 ff ff ff 
> > > > 56
> > > > [123452.708239] EAX: 00000052 EBX: ccb1d9d8 ECX: 00000001 EDX: 00000001
> > > > [123452.711218] ESI: ccb3449c EDI: ccb3449c EBP: c349fce0 ESP: c349fcac
> > > > [123452.714203] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 EFLAGS: 
> > > > 00010246
> > > > [123452.717188] CR0: 80050033 CR2: 01939768 CR3: 12618000 CR4: 000006d0
> > > >
> > > > On Mon, Sep 11, 2023 at 3:46 AM Salvatore Bonaccorso 
> > > > <car...@debian.org> wrote:
> > > >>
> > > >> Control: tags -1 + moreinfo
> > > >>
> > > >> Hi,
> > > >>
> > > >> On Mon, Sep 11, 2023 at 12:51:48AM -0400, Jiann-Ming Su wrote:
> > > >> > This may have been fixed in linux-image-6.1.0-12-686.
> > > >>
> > > >> Is this a confirmation that the problem is solved after the update?
> > > >> In that case we can accordingly close the bug.
> > > >>
> > > >> Regards,
> > > >> Salvatore
> > > >
> > > >
> > > >
> > > > --
> > > > Jiann-Ming Su
> > >
> > >
> > >
> > > --
> > > Jiann-Ming Su
> >
> >
> >
> > --
> > Jiann-Ming Su
>
>
>
> --
> Jiann-Ming Su



-- 
Jiann-Ming Su

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