Hay
Date
Dec. 5, 2024, 2:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   29.981906] ==================================================================
[   29.983128] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8
[   29.983869] Write of size 16 at addr fff00000c61b42a0 by task kunit_try_catch/155
[   29.984793] 
[   29.985967] CPU: 0 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241205 #1
[   29.987539] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.988190] Hardware name: linux,dummy-virt (DT)
[   29.988735] Call trace:
[   29.989246]  show_stack+0x20/0x38 (C)
[   29.989818]  dump_stack_lvl+0x8c/0xd0
[   29.990611]  print_report+0x118/0x5e0
[   29.991074]  kasan_report+0xc8/0x118
[   29.992060]  __asan_report_store16_noabort+0x20/0x30
[   29.992710]  kmalloc_oob_16+0x3a0/0x3f8
[   29.993318]  kunit_try_run_case+0x14c/0x3d0
[   29.993919]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.994658]  kthread+0x24c/0x2d0
[   29.995437]  ret_from_fork+0x10/0x20
[   29.996105] 
[   29.996435] Allocated by task 155:
[   29.997018]  kasan_save_stack+0x3c/0x68
[   29.997578]  kasan_save_track+0x20/0x40
[   29.998170]  kasan_save_alloc_info+0x40/0x58
[   29.998760]  __kasan_kmalloc+0xd4/0xd8
[   29.999633]  __kmalloc_cache_noprof+0x15c/0x3c0
[   30.000210]  kmalloc_oob_16+0xb4/0x3f8
[   30.000844]  kunit_try_run_case+0x14c/0x3d0
[   30.001531]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.002318]  kthread+0x24c/0x2d0
[   30.002896]  ret_from_fork+0x10/0x20
[   30.003851] 
[   30.004130] The buggy address belongs to the object at fff00000c61b42a0
[   30.004130]  which belongs to the cache kmalloc-16 of size 16
[   30.005392] The buggy address is located 0 bytes inside of
[   30.005392]  allocated 13-byte region [fff00000c61b42a0, fff00000c61b42ad)
[   30.006784] 
[   30.007162] The buggy address belongs to the physical page:
[   30.007780] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1061b4
[   30.008836] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   30.009823] page_type: f5(slab)
[   30.010359] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000
[   30.011522] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   30.012625] page dumped because: kasan: bad access detected
[   30.013420] 
[   30.013946] Memory state around the buggy address:
[   30.014709]  fff00000c61b4180: 00 05 fc fc fa fb fc fc 00 02 fc fc fa fb fc fc
[   30.016046]  fff00000c61b4200: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   30.017052] >fff00000c61b4280: 00 04 fc fc 00 05 fc fc 00 00 fc fc fc fc fc fc
[   30.018163]                                   ^
[   30.018809]  fff00000c61b4300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.019949]  fff00000c61b4380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.020852] ==================================================================

[   27.722924] ==================================================================
[   27.723867] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x454/0x4a0
[   27.725007] Write of size 16 at addr ffff888101a5bbc0 by task kunit_try_catch/173
[   27.725438] 
[   27.726030] CPU: 0 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241205 #1
[   27.727872] Tainted: [B]=BAD_PAGE, [N]=TEST
[   27.728617] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   27.729704] Call Trace:
[   27.730057]  <TASK>
[   27.730323]  dump_stack_lvl+0x73/0xb0
[   27.730734]  print_report+0xd1/0x640
[   27.731124]  ? __virt_addr_valid+0x1db/0x2d0
[   27.731555]  ? kasan_complete_mode_report_info+0x2a/0x200
[   27.732586]  kasan_report+0x102/0x140
[   27.733195]  ? kmalloc_oob_16+0x454/0x4a0
[   27.733506]  ? kmalloc_oob_16+0x454/0x4a0
[   27.734328]  __asan_report_store16_noabort+0x1b/0x30
[   27.735239]  kmalloc_oob_16+0x454/0x4a0
[   27.735910]  ? __pfx_kmalloc_oob_16+0x10/0x10
[   27.736886]  ? __schedule+0xc70/0x27e0
[   27.737564]  ? __pfx_read_tsc+0x10/0x10
[   27.738118]  ? ktime_get_ts64+0x86/0x230
[   27.739042]  kunit_try_run_case+0x1b3/0x490
[   27.739614]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.740285]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   27.740544]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   27.740870]  ? __kthread_parkme+0x82/0x160
[   27.741885]  ? preempt_count_sub+0x50/0x80
[   27.742220]  ? __pfx_kunit_try_run_case+0x10/0x10
[   27.742813]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   27.743570]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.744948]  kthread+0x257/0x310
[   27.745371]  ? __pfx_kthread+0x10/0x10
[   27.746174]  ret_from_fork+0x41/0x80
[   27.746574]  ? __pfx_kthread+0x10/0x10
[   27.747378]  ret_from_fork_asm+0x1a/0x30
[   27.747711]  </TASK>
[   27.748415] 
[   27.748619] Allocated by task 173:
[   27.749024]  kasan_save_stack+0x3d/0x60
[   27.749676]  kasan_save_track+0x18/0x40
[   27.750339]  kasan_save_alloc_info+0x3b/0x50
[   27.751033]  __kasan_kmalloc+0xb7/0xc0
[   27.751607]  __kmalloc_cache_noprof+0x184/0x410
[   27.752410]  kmalloc_oob_16+0xa9/0x4a0
[   27.752701]  kunit_try_run_case+0x1b3/0x490
[   27.753547]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   27.754098]  kthread+0x257/0x310
[   27.754453]  ret_from_fork+0x41/0x80
[   27.755491]  ret_from_fork_asm+0x1a/0x30
[   27.756591] 
[   27.756789] The buggy address belongs to the object at ffff888101a5bbc0
[   27.756789]  which belongs to the cache kmalloc-16 of size 16
[   27.758259] The buggy address is located 0 bytes inside of
[   27.758259]  allocated 13-byte region [ffff888101a5bbc0, ffff888101a5bbcd)
[   27.760001] 
[   27.760382] The buggy address belongs to the physical page:
[   27.760747] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101a5b
[   27.761907] flags: 0x200000000000000(node=0|zone=2)
[   27.762712] page_type: f5(slab)
[   27.763040] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000
[   27.763862] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   27.764673] page dumped because: kasan: bad access detected
[   27.765080] 
[   27.765435] Memory state around the buggy address:
[   27.765786]  ffff888101a5ba80: fa fb fc fc fa fb fc fc fa fb fc fc 00 01 fc fc
[   27.766623]  ffff888101a5bb00: fa fb fc fc 00 01 fc fc 00 01 fc fc fa fb fc fc
[   27.767742] >ffff888101a5bb80: 00 05 fc fc fa fb fc fc 00 05 fc fc 00 00 fc fc
[   27.768822]                                               ^
[   27.769420]  ffff888101a5bc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.770508]  ffff888101a5bc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   27.771128] ==================================================================