Date
April 22, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 | |
| rk3399-rock-pi-4b |
[ 20.332177] ================================================================== [ 20.332293] BUG: KASAN: slab-use-after-free in strlen+0xa8/0xb0 [ 20.332418] Read of size 1 at addr fff00000c42a8690 by task kunit_try_catch/261 [ 20.332567] [ 20.332651] CPU: 0 UID: 0 PID: 261 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc3 #1 PREEMPT [ 20.332844] Tainted: [B]=BAD_PAGE, [N]=TEST [ 20.332947] Hardware name: linux,dummy-virt (DT) [ 20.333025] Call trace: [ 20.333088] show_stack+0x20/0x38 (C) [ 20.333274] dump_stack_lvl+0x8c/0xd0 [ 20.333388] print_report+0x118/0x608 [ 20.334723] kasan_report+0xdc/0x128 [ 20.334963] __asan_report_load1_noabort+0x20/0x30 [ 20.335577] strlen+0xa8/0xb0 [ 20.335948] kasan_strings+0x418/0xb00 [ 20.337540] kunit_try_run_case+0x170/0x3f0 [ 20.337696] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.337829] kthread+0x328/0x630 [ 20.337937] ret_from_fork+0x10/0x20 [ 20.338052] [ 20.338097] Allocated by task 261: [ 20.338155] kasan_save_stack+0x3c/0x68 [ 20.338245] kasan_save_track+0x20/0x40 [ 20.338325] kasan_save_alloc_info+0x40/0x58 [ 20.338426] __kasan_kmalloc+0xd4/0xd8 [ 20.338514] __kmalloc_cache_noprof+0x15c/0x3c0 [ 20.338634] kasan_strings+0xc8/0xb00 [ 20.338711] kunit_try_run_case+0x170/0x3f0 [ 20.338794] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.338996] kthread+0x328/0x630 [ 20.339216] ret_from_fork+0x10/0x20 [ 20.339376] [ 20.339448] Freed by task 261: [ 20.339547] kasan_save_stack+0x3c/0x68 [ 20.339726] kasan_save_track+0x20/0x40 [ 20.339947] kasan_save_free_info+0x4c/0x78 [ 20.340166] __kasan_slab_free+0x6c/0x98 [ 20.340414] kfree+0x214/0x3c8 [ 20.341181] kasan_strings+0x24c/0xb00 [ 20.341285] kunit_try_run_case+0x170/0x3f0 [ 20.341380] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 20.341483] kthread+0x328/0x630 [ 20.341587] ret_from_fork+0x10/0x20 [ 20.341670] [ 20.341721] The buggy address belongs to the object at fff00000c42a8680 [ 20.341721] which belongs to the cache kmalloc-32 of size 32 [ 20.341789] The buggy address is located 16 bytes inside of [ 20.341789] freed 32-byte region [fff00000c42a8680, fff00000c42a86a0) [ 20.341853] [ 20.341877] The buggy address belongs to the physical page: [ 20.341912] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1042a8 [ 20.341972] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 20.342025] page_type: f5(slab) [ 20.342069] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 20.342125] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 20.342172] page dumped because: kasan: bad access detected [ 20.342208] [ 20.342230] Memory state around the buggy address: [ 20.342265] fff00000c42a8580: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 20.342312] fff00000c42a8600: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 20.342356] >fff00000c42a8680: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 20.342397] ^ [ 20.342431] fff00000c42a8700: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 20.342475] fff00000c42a8780: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 20.342515] ==================================================================
[ 21.213162] ================================================================== [ 21.214548] BUG: KASAN: slab-use-after-free in strlen+0x8f/0xb0 [ 21.215052] Read of size 1 at addr ffff888103c72750 by task kunit_try_catch/279 [ 21.215665] [ 21.215943] CPU: 0 UID: 0 PID: 279 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc3 #1 PREEMPT(voluntary) [ 21.216075] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.216114] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 21.216172] Call Trace: [ 21.216219] <TASK> [ 21.216272] dump_stack_lvl+0x73/0xb0 [ 21.216352] print_report+0xd1/0x650 [ 21.216473] ? __virt_addr_valid+0x1db/0x2d0 [ 21.216572] ? strlen+0x8f/0xb0 [ 21.216643] ? kasan_complete_mode_report_info+0x64/0x200 [ 21.216721] ? strlen+0x8f/0xb0 [ 21.216793] kasan_report+0x141/0x180 [ 21.216871] ? strlen+0x8f/0xb0 [ 21.216956] __asan_report_load1_noabort+0x18/0x20 [ 21.217030] strlen+0x8f/0xb0 [ 21.217108] kasan_strings+0x57b/0xe80 [ 21.217180] ? trace_hardirqs_on+0x37/0xe0 [ 21.217264] ? __pfx_kasan_strings+0x10/0x10 [ 21.217336] ? finish_task_switch.isra.0+0x153/0x700 [ 21.217455] ? __switch_to+0x5d9/0xf60 [ 21.217546] ? dequeue_task_fair+0x156/0x4e0 [ 21.217641] ? __schedule+0x10cc/0x2b30 [ 21.217724] ? __pfx_read_tsc+0x10/0x10 [ 21.217788] ? ktime_get_ts64+0x86/0x230 [ 21.217842] kunit_try_run_case+0x1a5/0x480 [ 21.217880] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.217914] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 21.217950] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 21.217985] ? __kthread_parkme+0x82/0x180 [ 21.218017] ? preempt_count_sub+0x50/0x80 [ 21.218051] ? __pfx_kunit_try_run_case+0x10/0x10 [ 21.218084] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.218115] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 21.218148] kthread+0x337/0x6f0 [ 21.218180] ? trace_preempt_on+0x20/0xc0 [ 21.218212] ? __pfx_kthread+0x10/0x10 [ 21.218245] ? _raw_spin_unlock_irq+0x47/0x80 [ 21.218277] ? calculate_sigpending+0x7b/0xa0 [ 21.218309] ? __pfx_kthread+0x10/0x10 [ 21.218343] ret_from_fork+0x41/0x80 [ 21.218374] ? __pfx_kthread+0x10/0x10 [ 21.218405] ret_from_fork_asm+0x1a/0x30 [ 21.218514] </TASK> [ 21.218532] [ 21.239341] Allocated by task 279: [ 21.240145] kasan_save_stack+0x45/0x70 [ 21.240751] kasan_save_track+0x18/0x40 [ 21.241289] kasan_save_alloc_info+0x3b/0x50 [ 21.241942] __kasan_kmalloc+0xb7/0xc0 [ 21.242270] __kmalloc_cache_noprof+0x189/0x420 [ 21.243099] kasan_strings+0xc0/0xe80 [ 21.243469] kunit_try_run_case+0x1a5/0x480 [ 21.243900] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.244611] kthread+0x337/0x6f0 [ 21.244998] ret_from_fork+0x41/0x80 [ 21.245621] ret_from_fork_asm+0x1a/0x30 [ 21.246043] [ 21.246255] Freed by task 279: [ 21.247048] kasan_save_stack+0x45/0x70 [ 21.247374] kasan_save_track+0x18/0x40 [ 21.247814] kasan_save_free_info+0x3f/0x60 [ 21.248244] __kasan_slab_free+0x56/0x70 [ 21.248932] kfree+0x222/0x3f0 [ 21.249526] kasan_strings+0x2aa/0xe80 [ 21.249864] kunit_try_run_case+0x1a5/0x480 [ 21.250284] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 21.251641] kthread+0x337/0x6f0 [ 21.251923] ret_from_fork+0x41/0x80 [ 21.252204] ret_from_fork_asm+0x1a/0x30 [ 21.252508] [ 21.252679] The buggy address belongs to the object at ffff888103c72740 [ 21.252679] which belongs to the cache kmalloc-32 of size 32 [ 21.253714] The buggy address is located 16 bytes inside of [ 21.253714] freed 32-byte region [ffff888103c72740, ffff888103c72760) [ 21.254294] [ 21.254465] The buggy address belongs to the physical page: [ 21.256713] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103c72 [ 21.257248] flags: 0x200000000000000(node=0|zone=2) [ 21.257882] page_type: f5(slab) [ 21.258296] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 21.258743] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 21.260785] page dumped because: kasan: bad access detected [ 21.261125] [ 21.261276] Memory state around the buggy address: [ 21.261619] ffff888103c72600: 00 00 00 04 fc fc fc fc fa fb fb fb fc fc fc fc [ 21.262019] ffff888103c72680: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 21.263697] >ffff888103c72700: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 21.265380] ^ [ 21.266698] ffff888103c72780: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 21.267890] ffff888103c72800: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 21.268316] ==================================================================
[ 21.871818] ================================================================== [ 21.872494] BUG: KASAN: slab-use-after-free in strlen+0xa8/0xb0 [ 21.873053] Read of size 1 at addr ffff000010ac0b10 by task kunit_try_catch/317 [ 21.873720] [ 21.873876] CPU: 4 UID: 0 PID: 317 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc3 #1 PREEMPT [ 21.873914] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.873925] Hardware name: Radxa ROCK Pi 4B (DT) [ 21.873937] Call trace: [ 21.873946] show_stack+0x20/0x38 (C) [ 21.873971] dump_stack_lvl+0x8c/0xd0 [ 21.873992] print_report+0x118/0x608 [ 21.874013] kasan_report+0xdc/0x128 [ 21.874032] __asan_report_load1_noabort+0x20/0x30 [ 21.874055] strlen+0xa8/0xb0 [ 21.874075] kasan_strings+0x418/0xb00 [ 21.874098] kunit_try_run_case+0x170/0x3f0 [ 21.874122] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.874149] kthread+0x328/0x630 [ 21.874174] ret_from_fork+0x10/0x20 [ 21.874196] [ 21.879953] Allocated by task 317: [ 21.880271] kasan_save_stack+0x3c/0x68 [ 21.880633] kasan_save_track+0x20/0x40 [ 21.880994] kasan_save_alloc_info+0x40/0x58 [ 21.881393] __kasan_kmalloc+0xd4/0xd8 [ 21.881744] __kmalloc_cache_noprof+0x15c/0x3c0 [ 21.882171] kasan_strings+0xc8/0xb00 [ 21.882518] kunit_try_run_case+0x170/0x3f0 [ 21.882911] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.883420] kthread+0x328/0x630 [ 21.883731] ret_from_fork+0x10/0x20 [ 21.884068] [ 21.884215] Freed by task 317: [ 21.884500] kasan_save_stack+0x3c/0x68 [ 21.884860] kasan_save_track+0x20/0x40 [ 21.885218] kasan_save_free_info+0x4c/0x78 [ 21.885608] __kasan_slab_free+0x6c/0x98 [ 21.885975] kfree+0x214/0x3c8 [ 21.886269] kasan_strings+0x24c/0xb00 [ 21.886623] kunit_try_run_case+0x170/0x3f0 [ 21.887015] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.887524] kthread+0x328/0x630 [ 21.887834] ret_from_fork+0x10/0x20 [ 21.888171] [ 21.888318] The buggy address belongs to the object at ffff000010ac0b00 [ 21.888318] which belongs to the cache kmalloc-32 of size 32 [ 21.889421] The buggy address is located 16 bytes inside of [ 21.889421] freed 32-byte region [ffff000010ac0b00, ffff000010ac0b20) [ 21.890503] [ 21.890650] The buggy address belongs to the physical page: [ 21.891155] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10ac0 [ 21.891873] flags: 0x3fffe0000000000(node=0|zone=0|lastcpupid=0x1ffff) [ 21.892470] page_type: f5(slab) [ 21.892771] raw: 03fffe0000000000 ffff000000402780 dead000000000122 0000000000000000 [ 21.893473] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 21.894169] page dumped because: kasan: bad access detected [ 21.894674] [ 21.894820] Memory state around the buggy address: [ 21.895258] ffff000010ac0a00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 21.895911] ffff000010ac0a80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 21.896563] >ffff000010ac0b00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 21.897214] ^ [ 21.897560] ffff000010ac0b80: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 21.898213] ffff000010ac0c00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 21.898862] ==================================================================