Date
July 20, 2025, 8:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.232606] ================================================================== [ 15.232789] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 15.233063] Write of size 8 at addr fff00000c6094d71 by task kunit_try_catch/177 [ 15.233295] [ 15.233367] CPU: 1 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.233528] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.233591] Hardware name: linux,dummy-virt (DT) [ 15.233637] Call trace: [ 15.233734] show_stack+0x20/0x38 (C) [ 15.233793] dump_stack_lvl+0x8c/0xd0 [ 15.234234] print_report+0x118/0x5d0 [ 15.234331] kasan_report+0xdc/0x128 [ 15.234478] kasan_check_range+0x100/0x1a8 [ 15.234564] __asan_memset+0x34/0x78 [ 15.234711] kmalloc_oob_memset_8+0x150/0x2f8 [ 15.234798] kunit_try_run_case+0x170/0x3f0 [ 15.234938] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.235178] kthread+0x328/0x630 [ 15.235255] ret_from_fork+0x10/0x20 [ 15.235488] [ 15.235559] Allocated by task 177: [ 15.235674] kasan_save_stack+0x3c/0x68 [ 15.235762] kasan_save_track+0x20/0x40 [ 15.236489] kasan_save_alloc_info+0x40/0x58 [ 15.236819] __kasan_kmalloc+0xd4/0xd8 [ 15.236895] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.236954] kmalloc_oob_memset_8+0xb0/0x2f8 [ 15.237032] kunit_try_run_case+0x170/0x3f0 [ 15.237175] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.237434] kthread+0x328/0x630 [ 15.237663] ret_from_fork+0x10/0x20 [ 15.237889] [ 15.237931] The buggy address belongs to the object at fff00000c6094d00 [ 15.237931] which belongs to the cache kmalloc-128 of size 128 [ 15.238058] The buggy address is located 113 bytes inside of [ 15.238058] allocated 120-byte region [fff00000c6094d00, fff00000c6094d78) [ 15.238152] [ 15.238221] The buggy address belongs to the physical page: [ 15.238253] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106094 [ 15.238307] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.238354] page_type: f5(slab) [ 15.238423] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.238477] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.238525] page dumped because: kasan: bad access detected [ 15.238556] [ 15.238574] Memory state around the buggy address: [ 15.238618] fff00000c6094c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.238671] fff00000c6094c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.238719] >fff00000c6094d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.238757] ^ [ 15.238808] fff00000c6094d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.238847] fff00000c6094e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.238884] ==================================================================
[ 13.074300] ================================================================== [ 13.074811] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 13.075108] Write of size 8 at addr ffff8881029df671 by task kunit_try_catch/194 [ 13.075652] [ 13.075779] CPU: 1 UID: 0 PID: 194 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.075826] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.075837] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.075859] Call Trace: [ 13.075873] <TASK> [ 13.075889] dump_stack_lvl+0x73/0xb0 [ 13.075921] print_report+0xd1/0x610 [ 13.075945] ? __virt_addr_valid+0x1db/0x2d0 [ 13.075967] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.075989] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.076011] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.076034] kasan_report+0x141/0x180 [ 13.076295] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.076327] kasan_check_range+0x10c/0x1c0 [ 13.076352] __asan_memset+0x27/0x50 [ 13.076371] kmalloc_oob_memset_8+0x166/0x330 [ 13.076394] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 13.076417] ? __schedule+0x10c6/0x2b60 [ 13.076440] ? __pfx_read_tsc+0x10/0x10 [ 13.076461] ? ktime_get_ts64+0x86/0x230 [ 13.076501] kunit_try_run_case+0x1a5/0x480 [ 13.076527] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.076549] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.076574] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.076598] ? __kthread_parkme+0x82/0x180 [ 13.076618] ? preempt_count_sub+0x50/0x80 [ 13.076642] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.076666] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.076690] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.076716] kthread+0x337/0x6f0 [ 13.076737] ? trace_preempt_on+0x20/0xc0 [ 13.076760] ? __pfx_kthread+0x10/0x10 [ 13.076780] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.076803] ? calculate_sigpending+0x7b/0xa0 [ 13.076827] ? __pfx_kthread+0x10/0x10 [ 13.076849] ret_from_fork+0x116/0x1d0 [ 13.076868] ? __pfx_kthread+0x10/0x10 [ 13.076890] ret_from_fork_asm+0x1a/0x30 [ 13.076921] </TASK> [ 13.076931] [ 13.087692] Allocated by task 194: [ 13.087996] kasan_save_stack+0x45/0x70 [ 13.088541] kasan_save_track+0x18/0x40 [ 13.088881] kasan_save_alloc_info+0x3b/0x50 [ 13.089413] __kasan_kmalloc+0xb7/0xc0 [ 13.089626] __kmalloc_cache_noprof+0x189/0x420 [ 13.090172] kmalloc_oob_memset_8+0xac/0x330 [ 13.090476] kunit_try_run_case+0x1a5/0x480 [ 13.090687] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.091420] kthread+0x337/0x6f0 [ 13.091679] ret_from_fork+0x116/0x1d0 [ 13.091967] ret_from_fork_asm+0x1a/0x30 [ 13.092443] [ 13.092566] The buggy address belongs to the object at ffff8881029df600 [ 13.092566] which belongs to the cache kmalloc-128 of size 128 [ 13.093682] The buggy address is located 113 bytes inside of [ 13.093682] allocated 120-byte region [ffff8881029df600, ffff8881029df678) [ 13.094576] [ 13.094864] The buggy address belongs to the physical page: [ 13.095196] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029df [ 13.095873] flags: 0x200000000000000(node=0|zone=2) [ 13.096491] page_type: f5(slab) [ 13.096726] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.097314] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.097653] page dumped because: kasan: bad access detected [ 13.098001] [ 13.098461] Memory state around the buggy address: [ 13.098717] ffff8881029df500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.099686] ffff8881029df580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.100399] >ffff8881029df600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.100716] ^ [ 13.101343] ffff8881029df680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.101698] ffff8881029df700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.102052] ==================================================================