Date
April 20, 2025, 11:09 p.m.
Environment | |
---|---|
qemu-x86_64 | |
rk3399-rock-pi-4b |
[ 13.482953] ================================================================== [ 13.483249] BUG: KASAN: slab-use-after-free in strnlen+0x73/0x80 [ 13.483459] Read of size 1 at addr ffff888102757490 by task kunit_try_catch/279 [ 13.483973] [ 13.484099] CPU: 0 UID: 0 PID: 279 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc3 #1 PREEMPT(voluntary) [ 13.484145] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.484157] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.484178] Call Trace: [ 13.484192] <TASK> [ 13.484208] dump_stack_lvl+0x73/0xb0 [ 13.484233] print_report+0xd1/0x650 [ 13.484270] ? __virt_addr_valid+0x1db/0x2d0 [ 13.484292] ? strnlen+0x73/0x80 [ 13.484310] ? kasan_complete_mode_report_info+0x64/0x200 [ 13.484345] ? strnlen+0x73/0x80 [ 13.484365] kasan_report+0x141/0x180 [ 13.484387] ? strnlen+0x73/0x80 [ 13.484457] __asan_report_load1_noabort+0x18/0x20 [ 13.484482] strnlen+0x73/0x80 [ 13.484501] kasan_strings+0x615/0xe80 [ 13.484522] ? trace_hardirqs_on+0x37/0xe0 [ 13.484544] ? __pfx_kasan_strings+0x10/0x10 [ 13.484564] ? finish_task_switch.isra.0+0x153/0x700 [ 13.484586] ? __switch_to+0x5d9/0xf60 [ 13.484606] ? dequeue_task_fair+0x156/0x4e0 [ 13.484631] ? __schedule+0x10cc/0x2b30 [ 13.484654] ? __pfx_read_tsc+0x10/0x10 [ 13.484673] ? ktime_get_ts64+0x86/0x230 [ 13.484697] kunit_try_run_case+0x1a5/0x480 [ 13.484720] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.484741] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.484764] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.484788] ? __kthread_parkme+0x82/0x180 [ 13.484809] ? preempt_count_sub+0x50/0x80 [ 13.484833] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.484855] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.484878] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.484900] kthread+0x337/0x6f0 [ 13.484920] ? trace_preempt_on+0x20/0xc0 [ 13.484942] ? __pfx_kthread+0x10/0x10 [ 13.484963] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.484985] ? calculate_sigpending+0x7b/0xa0 [ 13.485005] ? __pfx_kthread+0x10/0x10 [ 13.485027] ret_from_fork+0x41/0x80 [ 13.485047] ? __pfx_kthread+0x10/0x10 [ 13.485069] ret_from_fork_asm+0x1a/0x30 [ 13.485100] </TASK> [ 13.485111] [ 13.493526] Allocated by task 279: [ 13.493785] kasan_save_stack+0x45/0x70 [ 13.493968] kasan_save_track+0x18/0x40 [ 13.494101] kasan_save_alloc_info+0x3b/0x50 [ 13.494243] __kasan_kmalloc+0xb7/0xc0 [ 13.494634] __kmalloc_cache_noprof+0x189/0x420 [ 13.494861] kasan_strings+0xc0/0xe80 [ 13.495049] kunit_try_run_case+0x1a5/0x480 [ 13.495293] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.495553] kthread+0x337/0x6f0 [ 13.495678] ret_from_fork+0x41/0x80 [ 13.495808] ret_from_fork_asm+0x1a/0x30 [ 13.495944] [ 13.496013] Freed by task 279: [ 13.496162] kasan_save_stack+0x45/0x70 [ 13.496361] kasan_save_track+0x18/0x40 [ 13.496604] kasan_save_free_info+0x3f/0x60 [ 13.496814] __kasan_slab_free+0x56/0x70 [ 13.496979] kfree+0x222/0x3f0 [ 13.497090] kasan_strings+0x2aa/0xe80 [ 13.497384] kunit_try_run_case+0x1a5/0x480 [ 13.497750] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.498010] kthread+0x337/0x6f0 [ 13.498150] ret_from_fork+0x41/0x80 [ 13.498357] ret_from_fork_asm+0x1a/0x30 [ 13.498493] [ 13.498562] The buggy address belongs to the object at ffff888102757480 [ 13.498562] which belongs to the cache kmalloc-32 of size 32 [ 13.499309] The buggy address is located 16 bytes inside of [ 13.499309] freed 32-byte region [ffff888102757480, ffff8881027574a0) [ 13.500565] [ 13.500921] The buggy address belongs to the physical page: [ 13.501540] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102757 [ 13.501855] flags: 0x200000000000000(node=0|zone=2) [ 13.502102] page_type: f5(slab) [ 13.502461] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 13.502918] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 13.503318] page dumped because: kasan: bad access detected [ 13.503929] [ 13.504028] Memory state around the buggy address: [ 13.504538] ffff888102757380: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 13.504952] ffff888102757400: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 13.505361] >ffff888102757480: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 13.505904] ^ [ 13.506079] ffff888102757500: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 13.506726] ffff888102757580: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 13.507006] ==================================================================
[ 23.568931] ================================================================== [ 23.569608] BUG: KASAN: slab-use-after-free in strnlen+0x80/0x88 [ 23.570173] Read of size 1 at addr ffff0000101e8f90 by task kunit_try_catch/313 [ 23.570839] [ 23.570994] CPU: 4 UID: 0 PID: 313 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc3 #1 PREEMPT [ 23.571032] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.571043] Hardware name: Radxa ROCK Pi 4B (DT) [ 23.571056] Call trace: [ 23.571064] show_stack+0x20/0x38 (C) [ 23.571089] dump_stack_lvl+0x8c/0xd0 [ 23.571110] print_report+0x118/0x608 [ 23.571131] kasan_report+0xdc/0x128 [ 23.571150] __asan_report_load1_noabort+0x20/0x30 [ 23.571173] strnlen+0x80/0x88 [ 23.571194] kasan_strings+0x478/0xb00 [ 23.571218] kunit_try_run_case+0x170/0x3f0 [ 23.571242] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.571268] kthread+0x328/0x630 [ 23.571292] ret_from_fork+0x10/0x20 [ 23.571313] [ 23.577081] Allocated by task 313: [ 23.577398] kasan_save_stack+0x3c/0x68 [ 23.577762] kasan_save_track+0x20/0x40 [ 23.578121] kasan_save_alloc_info+0x40/0x58 [ 23.578521] __kasan_kmalloc+0xd4/0xd8 [ 23.578873] __kmalloc_cache_noprof+0x15c/0x3c0 [ 23.579299] kasan_strings+0xc8/0xb00 [ 23.579646] kunit_try_run_case+0x170/0x3f0 [ 23.580039] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.580549] kthread+0x328/0x630 [ 23.580858] ret_from_fork+0x10/0x20 [ 23.581196] [ 23.581343] Freed by task 313: [ 23.581629] kasan_save_stack+0x3c/0x68 [ 23.581987] kasan_save_track+0x20/0x40 [ 23.582346] kasan_save_free_info+0x4c/0x78 [ 23.582737] __kasan_slab_free+0x6c/0x98 [ 23.583104] kfree+0x214/0x3c8 [ 23.583399] kasan_strings+0x24c/0xb00 [ 23.583753] kunit_try_run_case+0x170/0x3f0 [ 23.584145] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.584654] kthread+0x328/0x630 [ 23.584964] ret_from_fork+0x10/0x20 [ 23.585300] [ 23.585447] The buggy address belongs to the object at ffff0000101e8f80 [ 23.585447] which belongs to the cache kmalloc-32 of size 32 [ 23.586549] The buggy address is located 16 bytes inside of [ 23.586549] freed 32-byte region [ffff0000101e8f80, ffff0000101e8fa0) [ 23.587631] [ 23.587777] The buggy address belongs to the physical page: [ 23.588283] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101e8 [ 23.589002] flags: 0x3fffe0000000000(node=0|zone=0|lastcpupid=0x1ffff) [ 23.589601] page_type: f5(slab) [ 23.589902] raw: 03fffe0000000000 ffff000000402780 dead000000000122 0000000000000000 [ 23.590602] raw: 0000000000000000 0000000000400040 00000000f5000000 0000000000000000 [ 23.591298] page dumped because: kasan: bad access detected [ 23.591802] [ 23.591947] Memory state around the buggy address: [ 23.592385] ffff0000101e8e80: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 23.593038] ffff0000101e8f00: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 23.593691] >ffff0000101e8f80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 23.594340] ^ [ 23.594687] ffff0000101e9000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 23.595340] ffff0000101e9080: fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb [ 23.595989] ==================================================================