Date
July 20, 2025, 11:12 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.825987] ================================================================== [ 18.826146] BUG: KASAN: slab-use-after-free in kasan_strings+0x95c/0xb00 [ 18.826640] Read of size 1 at addr fff00000c79c3ad0 by task kunit_try_catch/259 [ 18.827039] [ 18.827112] CPU: 1 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 18.827278] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.827308] Hardware name: linux,dummy-virt (DT) [ 18.827341] Call trace: [ 18.827367] show_stack+0x20/0x38 (C) [ 18.827467] dump_stack_lvl+0x8c/0xd0 [ 18.827517] print_report+0x118/0x5d0 [ 18.827679] kasan_report+0xdc/0x128 [ 18.827737] __asan_report_load1_noabort+0x20/0x30 [ 18.828015] kasan_strings+0x95c/0xb00 [ 18.828230] kunit_try_run_case+0x170/0x3f0 [ 18.828288] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.828363] kthread+0x328/0x630 [ 18.828551] ret_from_fork+0x10/0x20 [ 18.828646] [ 18.828764] Allocated by task 259: [ 18.828820] kasan_save_stack+0x3c/0x68 [ 18.828917] kasan_save_track+0x20/0x40 [ 18.828959] kasan_save_alloc_info+0x40/0x58 [ 18.829005] __kasan_kmalloc+0xd4/0xd8 [ 18.829044] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.829108] kasan_strings+0xc8/0xb00 [ 18.829310] kunit_try_run_case+0x170/0x3f0 [ 18.829356] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.829401] kthread+0x328/0x630 [ 18.829457] ret_from_fork+0x10/0x20 [ 18.829638] [ 18.829694] Freed by task 259: [ 18.829723] kasan_save_stack+0x3c/0x68 [ 18.829766] kasan_save_track+0x20/0x40 [ 18.829846] kasan_save_free_info+0x4c/0x78 [ 18.829889] __kasan_slab_free+0x6c/0x98 [ 18.829939] kfree+0x214/0x3c8 [ 18.829975] kasan_strings+0x24c/0xb00 [ 18.830013] kunit_try_run_case+0x170/0x3f0 [ 18.830054] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.830100] kthread+0x328/0x630 [ 18.830134] ret_from_fork+0x10/0x20 [ 18.830749] [ 18.830816] The buggy address belongs to the object at fff00000c79c3ac0 [ 18.830816] which belongs to the cache kmalloc-32 of size 32 [ 18.830878] The buggy address is located 16 bytes inside of [ 18.830878] freed 32-byte region [fff00000c79c3ac0, fff00000c79c3ae0) [ 18.830974] [ 18.830998] The buggy address belongs to the physical page: [ 18.831030] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1079c3 [ 18.831084] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.831332] page_type: f5(slab) [ 18.831400] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 18.831626] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 18.831716] page dumped because: kasan: bad access detected [ 18.831797] [ 18.831851] Memory state around the buggy address: [ 18.831886] fff00000c79c3980: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 18.831944] fff00000c79c3a00: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 18.831989] >fff00000c79c3a80: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 18.832030] ^ [ 18.832071] fff00000c79c3b00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 18.832126] fff00000c79c3b80: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 18.832168] ==================================================================
[ 19.067289] ================================================================== [ 19.067547] BUG: KASAN: slab-use-after-free in kasan_strings+0x95c/0xb00 [ 19.067642] Read of size 1 at addr fff00000c5b41290 by task kunit_try_catch/259 [ 19.067696] [ 19.068228] CPU: 1 UID: 0 PID: 259 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT [ 19.068994] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.069119] Hardware name: linux,dummy-virt (DT) [ 19.069164] Call trace: [ 19.069191] show_stack+0x20/0x38 (C) [ 19.069246] dump_stack_lvl+0x8c/0xd0 [ 19.069773] print_report+0x118/0x5d0 [ 19.069845] kasan_report+0xdc/0x128 [ 19.070060] __asan_report_load1_noabort+0x20/0x30 [ 19.070227] kasan_strings+0x95c/0xb00 [ 19.070416] kunit_try_run_case+0x170/0x3f0 [ 19.070747] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.070808] kthread+0x328/0x630 [ 19.070852] ret_from_fork+0x10/0x20 [ 19.071103] [ 19.071417] Allocated by task 259: [ 19.071585] kasan_save_stack+0x3c/0x68 [ 19.071651] kasan_save_track+0x20/0x40 [ 19.071953] kasan_save_alloc_info+0x40/0x58 [ 19.072002] __kasan_kmalloc+0xd4/0xd8 [ 19.072454] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.072711] kasan_strings+0xc8/0xb00 [ 19.072762] kunit_try_run_case+0x170/0x3f0 [ 19.072804] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.073140] kthread+0x328/0x630 [ 19.073177] ret_from_fork+0x10/0x20 [ 19.073215] [ 19.073238] Freed by task 259: [ 19.073604] kasan_save_stack+0x3c/0x68 [ 19.073668] kasan_save_track+0x20/0x40 [ 19.073708] kasan_save_free_info+0x4c/0x78 [ 19.073752] __kasan_slab_free+0x6c/0x98 [ 19.074093] kfree+0x214/0x3c8 [ 19.074141] kasan_strings+0x24c/0xb00 [ 19.074179] kunit_try_run_case+0x170/0x3f0 [ 19.074738] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.074797] kthread+0x328/0x630 [ 19.074833] ret_from_fork+0x10/0x20 [ 19.074871] [ 19.074894] The buggy address belongs to the object at fff00000c5b41280 [ 19.074894] which belongs to the cache kmalloc-32 of size 32 [ 19.075360] The buggy address is located 16 bytes inside of [ 19.075360] freed 32-byte region [fff00000c5b41280, fff00000c5b412a0) [ 19.075591] [ 19.075629] The buggy address belongs to the physical page: [ 19.076104] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105b41 [ 19.076186] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.076301] page_type: f5(slab) [ 19.076478] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 19.076534] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 19.077035] page dumped because: kasan: bad access detected [ 19.077087] [ 19.077108] Memory state around the buggy address: [ 19.077147] fff00000c5b41180: 00 00 07 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 19.077663] fff00000c5b41200: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 19.078015] >fff00000c5b41280: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 19.078130] ^ [ 19.078474] fff00000c5b41300: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.078627] fff00000c5b41380: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 19.078671] ==================================================================
[ 14.650788] ================================================================== [ 14.651844] BUG: KASAN: slab-use-after-free in kasan_strings+0xcbc/0xe80 [ 14.652091] Read of size 1 at addr ffff8881039514d0 by task kunit_try_catch/277 [ 14.652452] [ 14.652645] CPU: 1 UID: 0 PID: 277 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 14.652697] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.652722] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.652742] Call Trace: [ 14.652759] <TASK> [ 14.652775] dump_stack_lvl+0x73/0xb0 [ 14.652805] print_report+0xd1/0x610 [ 14.652828] ? __virt_addr_valid+0x1db/0x2d0 [ 14.652852] ? kasan_strings+0xcbc/0xe80 [ 14.652873] ? kasan_complete_mode_report_info+0x64/0x200 [ 14.652896] ? kasan_strings+0xcbc/0xe80 [ 14.652918] kasan_report+0x141/0x180 [ 14.652941] ? kasan_strings+0xcbc/0xe80 [ 14.652968] __asan_report_load1_noabort+0x18/0x20 [ 14.653003] kasan_strings+0xcbc/0xe80 [ 14.653023] ? trace_hardirqs_on+0x37/0xe0 [ 14.653048] ? __pfx_kasan_strings+0x10/0x10 [ 14.653080] ? finish_task_switch.isra.0+0x153/0x700 [ 14.653103] ? __switch_to+0x47/0xf50 [ 14.653129] ? __schedule+0x10c6/0x2b60 [ 14.653152] ? __pfx_read_tsc+0x10/0x10 [ 14.653173] ? ktime_get_ts64+0x86/0x230 [ 14.653198] kunit_try_run_case+0x1a5/0x480 [ 14.653223] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.653246] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.653270] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.653294] ? __kthread_parkme+0x82/0x180 [ 14.653317] ? preempt_count_sub+0x50/0x80 [ 14.653342] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.653366] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.653390] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.653424] kthread+0x337/0x6f0 [ 14.653445] ? trace_preempt_on+0x20/0xc0 [ 14.653468] ? __pfx_kthread+0x10/0x10 [ 14.653490] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.653512] ? calculate_sigpending+0x7b/0xa0 [ 14.653538] ? __pfx_kthread+0x10/0x10 [ 14.653560] ret_from_fork+0x116/0x1d0 [ 14.653579] ? __pfx_kthread+0x10/0x10 [ 14.653600] ret_from_fork_asm+0x1a/0x30 [ 14.653633] </TASK> [ 14.653644] [ 14.661589] Allocated by task 277: [ 14.661747] kasan_save_stack+0x45/0x70 [ 14.661962] kasan_save_track+0x18/0x40 [ 14.662159] kasan_save_alloc_info+0x3b/0x50 [ 14.662411] __kasan_kmalloc+0xb7/0xc0 [ 14.662618] __kmalloc_cache_noprof+0x189/0x420 [ 14.662822] kasan_strings+0xc0/0xe80 [ 14.662993] kunit_try_run_case+0x1a5/0x480 [ 14.663171] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.663417] kthread+0x337/0x6f0 [ 14.663543] ret_from_fork+0x116/0x1d0 [ 14.663875] ret_from_fork_asm+0x1a/0x30 [ 14.665307] [ 14.665404] Freed by task 277: [ 14.665524] kasan_save_stack+0x45/0x70 [ 14.665898] kasan_save_track+0x18/0x40 [ 14.666288] kasan_save_free_info+0x3f/0x60 [ 14.666713] __kasan_slab_free+0x56/0x70 [ 14.667017] kfree+0x222/0x3f0 [ 14.667138] kasan_strings+0x2aa/0xe80 [ 14.667271] kunit_try_run_case+0x1a5/0x480 [ 14.667424] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.667657] kthread+0x337/0x6f0 [ 14.668015] ret_from_fork+0x116/0x1d0 [ 14.668371] ret_from_fork_asm+0x1a/0x30 [ 14.668782] [ 14.668943] The buggy address belongs to the object at ffff8881039514c0 [ 14.668943] which belongs to the cache kmalloc-32 of size 32 [ 14.670024] The buggy address is located 16 bytes inside of [ 14.670024] freed 32-byte region [ffff8881039514c0, ffff8881039514e0) [ 14.670844] [ 14.670922] The buggy address belongs to the physical page: [ 14.671094] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103951 [ 14.671334] flags: 0x200000000000000(node=0|zone=2) [ 14.671799] page_type: f5(slab) [ 14.672106] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.672803] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 14.673451] page dumped because: kasan: bad access detected [ 14.673964] [ 14.674130] Memory state around the buggy address: [ 14.674563] ffff888103951380: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 14.675104] ffff888103951400: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 14.675320] >ffff888103951480: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 14.675543] ^ [ 14.676050] ffff888103951500: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 14.676691] ffff888103951580: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 14.677279] ==================================================================
[ 14.748663] ================================================================== [ 14.748932] BUG: KASAN: slab-use-after-free in kasan_strings+0xcbc/0xe80 [ 14.749257] Read of size 1 at addr ffff8881027c0890 by task kunit_try_catch/277 [ 14.749637] [ 14.749761] CPU: 1 UID: 0 PID: 277 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7 #1 PREEMPT(voluntary) [ 14.749805] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.749817] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.749841] Call Trace: [ 14.749855] <TASK> [ 14.749987] dump_stack_lvl+0x73/0xb0 [ 14.750021] print_report+0xd1/0x610 [ 14.750044] ? __virt_addr_valid+0x1db/0x2d0 [ 14.750066] ? kasan_strings+0xcbc/0xe80 [ 14.750086] ? kasan_complete_mode_report_info+0x64/0x200 [ 14.750107] ? kasan_strings+0xcbc/0xe80 [ 14.750128] kasan_report+0x141/0x180 [ 14.750163] ? kasan_strings+0xcbc/0xe80 [ 14.750191] __asan_report_load1_noabort+0x18/0x20 [ 14.750214] kasan_strings+0xcbc/0xe80 [ 14.750234] ? trace_hardirqs_on+0x37/0xe0 [ 14.750257] ? __pfx_kasan_strings+0x10/0x10 [ 14.750278] ? finish_task_switch.isra.0+0x153/0x700 [ 14.750300] ? __switch_to+0x47/0xf50 [ 14.750326] ? __schedule+0x10c6/0x2b60 [ 14.750348] ? __pfx_read_tsc+0x10/0x10 [ 14.750368] ? ktime_get_ts64+0x86/0x230 [ 14.750392] kunit_try_run_case+0x1a5/0x480 [ 14.750417] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.750439] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.750462] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.750485] ? __kthread_parkme+0x82/0x180 [ 14.750505] ? preempt_count_sub+0x50/0x80 [ 14.750527] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.750551] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.750574] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.750597] kthread+0x337/0x6f0 [ 14.750616] ? trace_preempt_on+0x20/0xc0 [ 14.750637] ? __pfx_kthread+0x10/0x10 [ 14.750657] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.750678] ? calculate_sigpending+0x7b/0xa0 [ 14.750711] ? __pfx_kthread+0x10/0x10 [ 14.750732] ret_from_fork+0x116/0x1d0 [ 14.750750] ? __pfx_kthread+0x10/0x10 [ 14.750769] ret_from_fork_asm+0x1a/0x30 [ 14.750799] </TASK> [ 14.750809] [ 14.759290] Allocated by task 277: [ 14.759465] kasan_save_stack+0x45/0x70 [ 14.759647] kasan_save_track+0x18/0x40 [ 14.759784] kasan_save_alloc_info+0x3b/0x50 [ 14.759935] __kasan_kmalloc+0xb7/0xc0 [ 14.760068] __kmalloc_cache_noprof+0x189/0x420 [ 14.760344] kasan_strings+0xc0/0xe80 [ 14.760581] kunit_try_run_case+0x1a5/0x480 [ 14.760792] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.761265] kthread+0x337/0x6f0 [ 14.761563] ret_from_fork+0x116/0x1d0 [ 14.761720] ret_from_fork_asm+0x1a/0x30 [ 14.761889] [ 14.761984] Freed by task 277: [ 14.762141] kasan_save_stack+0x45/0x70 [ 14.762501] kasan_save_track+0x18/0x40 [ 14.762675] kasan_save_free_info+0x3f/0x60 [ 14.762959] __kasan_slab_free+0x56/0x70 [ 14.763135] kfree+0x222/0x3f0 [ 14.763325] kasan_strings+0x2aa/0xe80 [ 14.763464] kunit_try_run_case+0x1a5/0x480 [ 14.763677] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.763908] kthread+0x337/0x6f0 [ 14.764134] ret_from_fork+0x116/0x1d0 [ 14.764284] ret_from_fork_asm+0x1a/0x30 [ 14.764496] [ 14.764593] The buggy address belongs to the object at ffff8881027c0880 [ 14.764593] which belongs to the cache kmalloc-32 of size 32 [ 14.765188] The buggy address is located 16 bytes inside of [ 14.765188] freed 32-byte region [ffff8881027c0880, ffff8881027c08a0) [ 14.765657] [ 14.765757] The buggy address belongs to the physical page: [ 14.766114] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027c0 [ 14.766546] flags: 0x200000000000000(node=0|zone=2) [ 14.766765] page_type: f5(slab) [ 14.767029] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.767285] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 14.767518] page dumped because: kasan: bad access detected [ 14.767696] [ 14.767767] Memory state around the buggy address: [ 14.767927] ffff8881027c0780: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 14.768259] ffff8881027c0800: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 14.768847] >ffff8881027c0880: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 14.769472] ^ [ 14.769606] ffff8881027c0900: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.769824] ffff8881027c0980: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 14.770038] ==================================================================