No problems in 18.04, but just installed 18.10 and immediately noticed: [ 22.210060] ------------[ cut here ]------------ [ 22.210064] Bad or missing usercopy whitelist? Kernel memory exposure attempt detected from SLUB object 'nvidia_stack_t' (offset 11864, size 3)! [ 22.210080] WARNING: CPU: 0 PID: 1044 at mm/usercopy.c:81 usercopy_warn+0x81/0xa0 [ 22.210081] Modules linked in: ccm nvidia_uvm(POE) rfcomm bnep dell_wmi wmi_bmof sparse_keymap snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel dell_rbtn snd_hda_codec snd_hda_core snd_hwdep snd_pcm dell_laptop coretemp dell_smbios dell_wmi_descriptor dcdbas snd_seq_midi dell_smm_hwmon arc4 kvm snd_seq_midi_event irqbypass ath9k snd_rawmidi joydev snd_seq ath9k_common input_leds nvidia(POE) serio_raw ath9k_hw snd_seq_device pcmcia ath mac80211 snd_timer btusb btrtl btbcm btintel yenta_socket pcmcia_rsrc snd bluetooth pcmcia_core cfg80211 ecdh_generic drm soundcore wmi mac_hid ip6table_filter ip6_tables xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack iptable_filter bpfilter sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs xor zstd_compress raid6_pq [ 22.210146] libcrc32c crypto_simd cryptd glue_helper aes_x86_64 algif_skcipher af_alg dm_crypt dm_mirror dm_region_hash dm_log gpio_ich psmouse lpc_ich ahci i2c_i801 libahci firewire_ohci pata_acpi firewire_core crc_itu_t tg3 video [ 22.210167] CPU: 0 PID: 1044 Comm: Xorg Tainted: P OE 4.18.0-11-generic #12-Ubuntu [ 22.210168] Hardware name: Dell Inc. Latitude D630 /, BIOS A19 06/04/2013 [ 22.210171] RIP: 0010:usercopy_warn+0x81/0xa0 [ 22.210172] Code: 50 9f 41 51 4d 89 d8 48 c7 c0 89 8d 4f 9f 49 89 f1 48 89 f9 48 0f 45 c2 48 c7 c7 f0 a1 50 9f 4c 89 d2 48 89 c6 e8 f1 cf df ff <0f> 0b 48 83 c4 18 c9 c3 48 c7 c6 b2 8a 52 9f 49 89 f1 49 89 f3 eb [ 22.210212] RSP: 0018:ffff9f98c1387b58 EFLAGS: 00010282 [ 22.210214] RAX: 0000000000000000 RBX: ffff916c551bae58 RCX: 0000000000000006 [ 22.210215] RDX: 0000000000000007 RSI: 0000000000000092 RDI: ffff916c5fc164b0 [ 22.210217] RBP: ffff9f98c1387b70 R08: 0000000000000001 R09: 00000000000003b7 [ 22.210218] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000003 [ 22.210219] R13: 0000000000000001 R14: ffff916c551bae5b R15: ffff916c551baea0 [ 22.210221] FS: 00007f097fd85a80(0000) GS:ffff916c5fc00000(0000) knlGS:0000000000000000 [ 22.210223] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.210225] CR2: 00007f097b36f000 CR3: 00000001112a4000 CR4: 00000000000006f0 [ 22.210226] Call Trace: [ 22.210233] __check_heap_object+0xc2/0x110 [ 22.210235] __check_object_size+0x14c/0x178 [ 22.210406] os_memcpy_to_user+0x26/0x50 [nvidia] [ 22.210506] _nv001372rm+0xa5/0x260 [nvidia] [ 22.210509] WARNING: kernel stack frame pointer at 000000008ab5a0d0 in Xorg:1044 has bad value 0000000009c6dee6 [ 22.210511] unwind stack type:0 next_sp: (null) mask:0x2 graph_idx:0 [ 22.210513] 00000000d9b18b42: ffff9f98c1387b80 (0xffff9f98c1387b80) [ 22.210515] 0000000052248cc5: ffffffff9e669a82 (__check_heap_object+0xc2/0x110) [ 22.210516] 00000000d8fbd36b: ffff9f98c1387bb0 (0xffff9f98c1387bb0) [ 22.210518] 00000000fbaec228: ffffffff9e691abc (__check_object_size+0x14c/0x178) [ 22.210520] 0000000075bbe0bd: 0000000000000003 (0x3) [ 22.210521] 00000000c59928fd: ffff916c551bae58 (0xffff916c551bae58) [ 22.210522] 00000000b21fd37b: 000056306fd72ff0 (0x56306fd72ff0) [ 22.210523] 00000000d6eeec1d: ffff916c551bae58 (0xffff916c551bae58) [ 22.210524] 00000000572c6e05: ffff9f98c1387bd8 (0xffff9f98c1387bd8) [ 22.210614] 00000000586dbeef: ffffffffc0ee6d26 (os_memcpy_to_user+0x26/0x50 [nvidia]) [ 22.210615] 00000000f8a4e252: 0000000000000003 (0x3) [ 22.210616] 000000001ec430c9: 0000000000000000 ... [ 22.210617] 00000000ab4db71d: 000056306fd72ff0 (0x56306fd72ff0) [ 22.210619] 000000008ab5a0d0: ffff916c551bae50 (0xffff916c551bae50) [ 22.210719] 00000000f7226ef5: ffffffffc0e6cd15 (_nv001372rm+0xa5/0x260 [nvidia]) [ 22.210720] 0000000027bdfa5e: 0000000000000000 ... [ 22.210721] 00000000f700deb4: ffff916c53e0f3e8 (0xffff916c53e0f3e8) [ 22.210722] 0000000083e0d8ce: ffff916c551baed8 (0xffff916c551baed8) [ 22.210723] 00000000e04851a1: ffff916c551bae80 (0xffff916c551bae80) [ 22.210831] 00000000a2adb8f1: ffffffffc0aeb88a (_nv004784rm+0x4eba/0x5500 [nvidia]) [ 22.210832] 0000000086514ed8: 0000000000000000 ... [ 22.210834] 0000000036331c54: ffff916c551baed8 (0xffff916c551baed8) [ 22.210835] 000000003936cf83: 00007ffef6f565b0 (0x7ffef6f565b0) [ 22.210942] 00000000ab82187b: ffffffffc0aebfbc (_nv004331rm+0xec/0xf0 [nvidia]) [ 22.210943] 000000009df1ed65: ffff916c551baed8 (0xffff916c551baed8) [ 22.210945] 00000000c1943ff4: ffff916c5292c008 (0xffff916c5292c008) [ 22.210946] 00000000550cc597: 0000000000000010 (0x10) [ 22.210947] 00000000e46ff081: 00007ffef6f565b0 (0x7ffef6f565b0) [ 22.210948] 0000000077b2d22b: 00000000c1d00051 (0xc1d00051) [ 22.211054] 00000000da526315: ffffffffc0ad563a (_nv004326rm+0xca/0x650 [nvidia]) [ 22.211055] 00000000a31d92d5: 00000000c1d00051 (0xc1d00051) [ 22.211056] 00000000d096f672: ffff916c551baed8 (0xffff916c551baed8) [ 22.211057] 00000000b792718e: 0000000000000000 ... [ 22.211155] 0000000014fb2c5c: ffffffffc0e87ef6 (_nv015126rm+0x576/0x5c0 [nvidia]) [ 22.211156] 00000000909db9a7: ffff916c53e0fa20 (0xffff916c53e0fa20) [ 22.211158] 000000001715fc93: ffff916c53e0fa20 (0xffff916c53e0fa20) [ 22.211159] 00000000b6f9272a: ffff916c521f3000 (0xffff916c521f3000) [ 22.211160] 00000000e43d3d1a: 000000000000002a (0x2a) [ 22.211161] 000000005c4a88f6: ffff916c521f3000 (0xffff916c521f3000) [ 22.211261] 00000000565f0780: ffffffffc0e6e25e (_nv000694rm+0x2e/0x60 [nvidia]) [ 22.211341] 00000000b3e76ecd: ffffffffc12e0260 (nv_ctl_waitqueue+0x20/0xffffffffffc09dc0 [nvidia]) [ 22.211342] 00000000cbcda601: ffff916c53e0fa20 (0xffff916c53e0fa20) [ 22.211343] 0000000065d807c3: ffff916c521f3000 (0xffff916c521f3000) [ 22.211434] 00000000c53b5e1f: ffffffffc0ec5a95 (_nv000789rm+0x5f5/0x8b0 [nvidia]) [ 22.211436] 00000000a43be42c: ffff916c551baff8 (0xffff916c551baff8) [ 22.211437] 000000008a3aaa37: 0000000000000020 (0x20) [ 22.211438] 00000000412ff673: ffff916c551b8000 (0xffff916c551b8000) [ 22.211439] 00000000e3eb15b5: ffff916c53e0fa20 (0xffff916c53e0fa20) [ 22.211441] 000000000cbb5208: 000000000000002a (0x2a) [ 22.211529] 00000000ce06aea2: ffffffffc0ecfdd3 (rm_ioctl+0x73/0x100 [nvidia]) [ 22.211531] 000000003d591b79: ffff9f98c1387e28 (0xffff9f98c1387e28) [ 22.211611] 0000000024066a6e: ffffffffc12e0260 (nv_ctl_waitqueue+0x20/0xffffffffffc09dc0 [nvidia]) [ 22.211612] 0000000056849e2b: 0000000000000414 (0x414) [ 22.211613] 000000006a2adb0b: 156c71804408bb48 (0x156c71804408bb48) [ 22.211615] 0000000094cffaad: 156c71813273e348 (0x156c71813273e348) [ 22.211616] 000000008584fc76: 156c71813273e348 (0x156c71813273e348) [ 22.211617] 0000000066871cd3: 156c7180bb3e5330 (0x156c7180bb3e5330) [ 22.211618] 00000000437a0f20: 0000000000000000 ... [ 22.211619] 0000000004e2ec6c: 0000000000000200 (0x200) [ 22.211620] 00000000d78b20e6: 0000002000000000 (0x2000000000) [ 22.211621] 000000005d121581: ffff9f98c1387d18 (0xffff9f98c1387d18) [ 22.211623] 00000000b28d298a: 0000000000000414 (0x414) [ 22.211624] 000000007339803b: 0000000000000414 (0x414) [ 22.211625] 00000000fe90c611: ffff9f98c1387d00 (0xffff9f98c1387d00) [ 22.211626] 0000000040fcc77f: 0000000000000000 ... [ 22.211628] 00000000fc28280b: ffffffff9e691a11 (__check_object_size+0xa1/0x178) [ 22.211629] 0000000060f471c5: 0000000000000020 (0x20) [ 22.211630] 0000000010b6263f: ffff916c53e0fa20 (0xffff916c53e0fa20) [ 22.211632] 000000003cd28f0d: ffff916c521f3000 (0xffff916c521f3000) [ 22.211633] 00000000608926a7: 000000000000002a (0x2a) [ 22.211713] 00000000d4558724: ffffffffc12e0260 (nv_ctl_waitqueue+0x20/0xffffffffffc09dc0 [nvidia]) [ 22.211802] 00000000414e9f4f: ffffffffc0ede288 (nvidia_ioctl+0x148/0x490 [nvidia]) [ 22.211803] 000000008dccd0b5: 00007ffef6f56520 (0x7ffef6f56520) [ 22.211804] 000000000218287d: ffff916c551b8000 (0xffff916c551b8000) [ 22.211806] 000000009a02225f: ffff916c521f3038 (0xffff916c521f3038) [ 22.211807] 00000000a3aaad39: 00007ffef6f56520 (0x7ffef6f56520) [ 22.211808] 00000000eb714283: ffff916c59836e40 (0xffff916c59836e40) [ 22.211809] 0000000088fa3103: ffff9f98c1387e00 (0xffff9f98c1387e00) [ 22.211811] 00000000327dc5fc: 469f66d752544800 (0x469f66d752544800) [ 22.211812] 00000000451ef49c: 00000000000000ff (0xff) [ 22.211813] 0000000023ce388d: 00007ffef6f56520 (0x7ffef6f56520) [ 22.211814] 0000000001601879: 000000000000000d (0xd) [ 22.211815] 00000000773158be: ffff916c529d6e00 (0xffff916c529d6e00) [ 22.211816] 000000003f50609c: 00007ffef6f56520 (0x7ffef6f56520) [ 22.211818] 00000000b51ef6f3: ffff9f98c1387e48 (0xffff9f98c1387e48) [ 22.211906] 00000000ab8b39d6: ffffffffc0ee9812 (nvidia_frontend_ioctl+0x32/0x50 [nvidia]) [ 22.211908] 000000005048483f: ffff916c4fd793e0 (0xffff916c4fd793e0) [ 22.211909] 00000000022074fe: 00007ffef6f56520 (0x7ffef6f56520) [ 22.211910] 00000000be329af1: ffff9f98c1387e58 (0xffff9f98c1387e58) [ 22.211999] 00000000aa5d3e49: ffffffffc0ee984d (nvidia_frontend_unlocked_ioctl+0x1d/0x30 [nvidia]) [ 22.212000] 00000000060609aa: ffff9f98c1387ed8 (0xffff9f98c1387ed8) [ 22.212003] 0000000034b819d4: ffffffff9e6afea8 (do_vfs_ioctl+0xa8/0x620) [ 22.212004] 000000006e6c2e08: ffff9f98c1387eb0 (0xffff9f98c1387eb0) [ 22.212006] 000000006329845b: ffff916c538f0c00 (0xffff916c538f0c00) [ 22.212007] 000000005fe07e53: ffff916c586db3e8 (0xffff916c586db3e8) [ 22.212008] 0000000091022d14: ffff916c538f0c10 (0xffff916c538f0c10) [ 22.212009] 000000007818192f: 0000000000000035 (0x35) [ 22.212011] 0000000000db324f: ffff9f98c1387ed8 (0xffff9f98c1387ed8) [ 22.212013] 00000000dad58c6a: ffffffff9e69adbf (vfs_write+0x17f/0x1b0) [ 22.212014] 000000000f1e1e31: ffff9f98c1387ed8 (0xffff9f98c1387ed8) [ 22.212016] 00000000e32aec00: 469f66d752544800 (0x469f66d752544800) [ 22.212017] 00000000e7e49bb7: ffff916c529d6e00 (0xffff916c529d6e00) [ 22.212018] 00000000d176aabd: ffff916c529d6e00 (0xffff916c529d6e00) [ 22.212019] 00000000a73d69ef: 000000000000000d (0xd) [ 22.212020] 00000000a10fccfd: 00000000c020462a (0xc020462a) [ 22.212022] 0000000043e94bdf: 00007ffef6f56520 (0x7ffef6f56520) [ 22.212023] 000000000663f723: ffff9f98c1387f18 (0xffff9f98c1387f18) [ 22.212025] 00000000c10c0583: ffffffff9e6b0487 (ksys_ioctl+0x67/0x90) [ 22.212026] 0000000000c79983: 0000000000002484 (0x2484) [ 22.212027] 00000000953d73ac: 0000000000000000 ... [ 22.212028] 0000000069fe08e8: ffff9f98c1387f58 (0xffff9f98c1387f58) [ 22.212029] 00000000c3b76801: 0000000000000000 ... [ 22.212031] 000000003c441390: ffff9f98c1387f28 (0xffff9f98c1387f28) [ 22.212033] 00000000ae085ea1: ffffffff9e6b04ca (__x64_sys_ioctl+0x1a/0x20) [ 22.212034] 00000000be487741: ffff9f98c1387f48 (0xffff9f98c1387f48) [ 22.212038] 00000000a23da382: ffffffff9e4042ca (do_syscall_64+0x5a/0x110) [ 22.212039] 0000000074d947ed: 0000000000000000 ... [ 22.212042] 00000000a7de30a3: ffffffff9ee00088 (entry_SYSCALL_64_after_hwframe+0x44/0xa9) [ 22.212043] 000000007dcf4b63: 000000000000002a (0x2a) [ 22.212044] 0000000068e183de: 0000000000000020 (0x20) [ 22.212045] 000000003aaf538b: 00000000c020462a (0xc020462a) [ 22.212046] 0000000097ac82bd: 00007ffef6f5653c (0x7ffef6f5653c) [ 22.212048] 00000000f63ca71a: 00007ffef6f56520 (0x7ffef6f56520) [ 22.212049] 000000004e4ead1b: 000000005c03813f (0x5c03813f) [ 22.212050] 0000000001ac1247: 0000000000003246 (0x3246) [ 22.212051] 0000000092000d28: 000056306f8c9cad (0x56306f8c9cad) [ 22.212052] 000000000e77eb01: 00007ffef6f5653c (0x7ffef6f5653c) [ 22.212054] 00000000fa6d9ee3: 00007ffef6f56520 (0x7ffef6f56520) [ 22.212055] 0000000096eaaf1f: ffffffffffffffda (0xffffffffffffffda) [ 22.212056] 00000000a9782129: 00007f09810bc3c7 (0x7f09810bc3c7) [ 22.212057] 000000005fb5a8cb: 00007ffef6f56520 (0x7ffef6f56520) [ 22.212058] 000000004b037cfa: 00000000c020462a (0xc020462a) [ 22.212060] 00000000f0233053: 000000000000000d (0xd) [ 22.212061] 00000000ac6eeed5: 0000000000000010 (0x10) [ 22.212062] 000000008e0b77ca: 00007f09810bc3c7 (0x7f09810bc3c7) [ 22.212063] 000000008d4bb259: 0000000000000033 (0x33) [ 22.212064] 0000000082477754: 0000000000003246 (0x3246) [ 22.212066] 000000003fe4d512: 00007ffef6f56488 (0x7ffef6f56488) [ 22.212067] 00000000d8281096: 000000000000002b (0x2b) [ 22.212175] ? _nv004784rm+0x4eba/0x5500 [nvidia] [ 22.212284] ? _nv004331rm+0xec/0xf0 [nvidia] [ 22.212390] ? _nv004326rm+0xca/0x650 [nvidia] [ 22.212488] ? _nv015126rm+0x576/0x5c0 [nvidia] [ 22.212587] ? _nv000694rm+0x2e/0x60 [nvidia] [ 22.212679] ? _nv000789rm+0x5f5/0x8b0 [nvidia] [ 22.212768] ? rm_ioctl+0x73/0x100 [nvidia] [ 22.212771] ? __check_object_size+0xa1/0x178 [ 22.212860] ? nvidia_ioctl+0x148/0x490 [nvidia] [ 22.212949] ? nvidia_frontend_ioctl+0x32/0x50 [nvidia] [ 22.213038] ? nvidia_frontend_unlocked_ioctl+0x1d/0x30 [nvidia] [ 22.213040] ? do_vfs_ioctl+0xa8/0x620 [ 22.213042] ? vfs_write+0x17f/0x1b0 [ 22.213044] ? ksys_ioctl+0x67/0x90 [ 22.213046] ? __x64_sys_ioctl+0x1a/0x20 [ 22.213048] ? do_syscall_64+0x5a/0x110 [ 22.213050] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 22.213052] ---[ end trace 261ee7c56f68f4b2 ]---
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1802622 Title: Ubuntu Cosmic nvidia-340 needs patch for "Bad or missing usercopy whitelist? Kernel memory exposure attempt detected from SLUB object 'nvidia_stack_t' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-340/+bug/1802622/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
