[    8.002192] repro: vmalloc error: size 4915200, failed to allocate pages, mode:0x80dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_ZERO|__GFP_NOMEMALLOC), nodemask=(null),cpuset=/,mems_allowed=0
[    8.057500] general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] PREEMPT SMP KASAN NOPTI
[    8.058874] KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067]
[    8.059788] CPU: 1 PID: 246 Comm: repro Not tainted 6.6.145 #1
[    8.060499] Hardware name: QEMU Ubuntu 24.04 PC v2 (i440FX + PIIX, arch_caps fix, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[    8.061866] RIP: 0010:dm_stat_free+0x12c/0x360
[    8.062409] Code: 8d 9c e8 80 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 8d 01 00 00 4d 8b 64 ef 28 49 8d 7c 24 60 49 89 f8 49 c1 e8 03 <43> 80 3c 28 00 0f 85 7e 01 00 00 4d 8b 44 24 60 4d 85 c0 74 3b 48
[    8.064590] RSP: 0018:ff1100000522f9d0 EFLAGS: 00010206
[    8.065213] RAX: 1ff4000000140212 RBX: ffa0000000a01090 RCX: 0000000000000002
[    8.066065] RDX: ff110000156b4c80 RSI: ff11000002525d00 RDI: 0000000000000060
[    8.066935] RBP: 0000000000000002 R08: 000000000000000c R09: ff1100000522f638
[    8.067822] R10: ff1100000522f667 R11: 000000000002e001 R12: 0000000000000000
[    8.068676] R13: dffffc0000000000 R14: 0000000000000002 R15: ffa0000000a01058
[    8.069588] FS:  0000000014c6a380(0000) GS:ff11000015680000(0000) knlGS:0000000000000000
[    8.070599] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.071334] CR2: 00000000004ac1a0 CR3: 0000000002644005 CR4: 0000000000771ee0
[    8.072258] PKRU: 55555554
[    8.072617] Call Trace:
[    8.072938]  <TASK>
[    8.073221]  dm_stats_message+0x1c28/0x2880
[    8.073792]  ? __pfx_dm_stats_message+0x10/0x10
[    8.074376]  ? dm_set_device_limits+0x240/0x2b0
[    8.074975]  ? __kmalloc+0x5c/0x160
[    8.075427]  ? realloc_argv+0xcd/0x120
[    8.075897]  ? down_read+0x139/0x220
[    8.076365]  ? __pfx_dm_split_args+0x10/0x10
[    8.076893]  ? __find_device_hash_cell+0xe7/0x3a0
[    8.077500]  target_message+0x51c/0x680
[    8.077975]  ? __pfx_target_message+0x10/0x10
[    8.078512]  ? __kasan_kmalloc+0x8f/0xa0
[    8.079006]  ctl_ioctl+0x567/0x980
[    8.079437]  ? __pfx_target_message+0x10/0x10
[    8.079985]  ? __pfx_ctl_ioctl+0x10/0x10
[    8.080487]  dm_ctl_ioctl+0x9/0x10
[    8.080918]  __x64_sys_ioctl+0x132/0x1a0
[    8.081439]  do_syscall_64+0x39/0x90
[    8.081897]  entry_SYSCALL_64_after_hwframe+0x78/0xe2
[    8.082556] RIP: 0033:0x43d20b
[    8.082951] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
[    8.085281] RSP: 002b:00007ffd295eafe0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[    8.086245] RAX: ffffffffffffffda RBX: 000000000047d347 RCX: 000000000043d20b
[    8.087145] RDX: 00007ffd295eb040 RSI: 00000000c138fd0e RDI: 0000000000000003
[    8.088041] RBP: 0000000000000003 R08: 0000000000000000 R09: 00007ffd295ead85
[    8.088932] R10: 000000000000001a R11: 0000000000000246 R12: 00007ffd295eb040
[    8.089826] R13: 0000000014c6a338 R14: 0000000000000001 R15: 00007ffd295ed070
[    8.090723]  </TASK>
[    8.091007] Modules linked in:
[    8.091467] ---[ end trace 0000000000000000 ]---
[    8.092059] RIP: 0010:dm_stat_free+0x12c/0x360
[    8.092637] Code: 8d 9c e8 80 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 0f 85 8d 01 00 00 4d 8b 64 ef 28 49 8d 7c 24 60 49 89 f8 49 c1 e8 03 <43> 80 3c 28 00 0f 85 7e 01 00 00 4d 8b 44 24 60 4d 85 c0 74 3b 48
[    8.094980] RSP: 0018:ff1100000522f9d0 EFLAGS: 00010206
[    8.095646] RAX: 1ff4000000140212 RBX: ffa0000000a01090 RCX: 0000000000000002
[    8.096529] RDX: ff110000156b4c80 RSI: ff11000002525d00 RDI: 0000000000000060
[    8.097463] RBP: 0000000000000002 R08: 000000000000000c R09: ff1100000522f638
[    8.098380] R10: ff1100000522f667 R11: 000000000002e001 R12: 0000000000000000
[    8.099296] R13: dffffc0000000000 R14: 0000000000000002 R15: ffa0000000a01058
[    8.100205] FS:  0000000014c6a380(0000) GS:ff11000015680000(0000) knlGS:0000000000000000
[    8.101251] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    8.101985] CR2: 00000000004ac1a0 CR3: 0000000002644005 CR4: 0000000000771ee0
[    8.102914] PKRU: 55555554
[    8.103280] Kernel panic - not syncing: Fatal exception
