Date
July 8, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.401113] ================================================================== [ 19.401180] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 19.401531] Write of size 4 at addr fff00000c6343b75 by task kunit_try_catch/174 [ 19.401729] [ 19.401827] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.401963] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.401991] Hardware name: linux,dummy-virt (DT) [ 19.402036] Call trace: [ 19.402058] show_stack+0x20/0x38 (C) [ 19.402108] dump_stack_lvl+0x8c/0xd0 [ 19.402171] print_report+0x118/0x608 [ 19.402216] kasan_report+0xdc/0x128 [ 19.402259] kasan_check_range+0x100/0x1a8 [ 19.402781] __asan_memset+0x34/0x78 [ 19.402848] kmalloc_oob_memset_4+0x150/0x300 [ 19.402924] kunit_try_run_case+0x170/0x3f0 [ 19.402977] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.403029] kthread+0x328/0x630 [ 19.403069] ret_from_fork+0x10/0x20 [ 19.403408] [ 19.403512] Allocated by task 174: [ 19.403591] kasan_save_stack+0x3c/0x68 [ 19.403746] kasan_save_track+0x20/0x40 [ 19.403947] kasan_save_alloc_info+0x40/0x58 [ 19.403991] __kasan_kmalloc+0xd4/0xd8 [ 19.404027] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.404072] kmalloc_oob_memset_4+0xb0/0x300 [ 19.404109] kunit_try_run_case+0x170/0x3f0 [ 19.404396] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.404527] kthread+0x328/0x630 [ 19.404737] ret_from_fork+0x10/0x20 [ 19.404871] [ 19.404963] The buggy address belongs to the object at fff00000c6343b00 [ 19.404963] which belongs to the cache kmalloc-128 of size 128 [ 19.405200] The buggy address is located 117 bytes inside of [ 19.405200] allocated 120-byte region [fff00000c6343b00, fff00000c6343b78) [ 19.405279] [ 19.405299] The buggy address belongs to the physical page: [ 19.405519] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106343 [ 19.405836] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.405981] page_type: f5(slab) [ 19.406114] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.406226] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.406267] page dumped because: kasan: bad access detected [ 19.406668] [ 19.406869] Memory state around the buggy address: [ 19.406993] fff00000c6343a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.407068] fff00000c6343a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.407109] >fff00000c6343b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.407145] ^ [ 19.407246] fff00000c6343b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.407298] fff00000c6343c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.407335] ==================================================================
[ 12.591111] ================================================================== [ 12.591546] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 12.591842] Write of size 4 at addr ffff888102b79d75 by task kunit_try_catch/192 [ 12.592218] [ 12.592339] CPU: 0 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.592383] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.592394] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.592414] Call Trace: [ 12.592426] <TASK> [ 12.592444] dump_stack_lvl+0x73/0xb0 [ 12.592475] print_report+0xd1/0x650 [ 12.592499] ? __virt_addr_valid+0x1db/0x2d0 [ 12.592523] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.592545] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.592583] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.592616] kasan_report+0x141/0x180 [ 12.592638] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.592665] kasan_check_range+0x10c/0x1c0 [ 12.592689] __asan_memset+0x27/0x50 [ 12.592708] kmalloc_oob_memset_4+0x166/0x330 [ 12.592730] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.592753] ? ret_from_fork_asm+0x1a/0x30 [ 12.592777] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.592803] kunit_try_run_case+0x1a5/0x480 [ 12.592829] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.592851] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.592875] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.592899] ? __kthread_parkme+0x82/0x180 [ 12.592920] ? preempt_count_sub+0x50/0x80 [ 12.593004] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.593030] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.593054] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.593079] kthread+0x337/0x6f0 [ 12.593097] ? trace_preempt_on+0x20/0xc0 [ 12.593121] ? __pfx_kthread+0x10/0x10 [ 12.593142] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.593163] ? calculate_sigpending+0x7b/0xa0 [ 12.593187] ? __pfx_kthread+0x10/0x10 [ 12.593208] ret_from_fork+0x116/0x1d0 [ 12.593228] ? __pfx_kthread+0x10/0x10 [ 12.593248] ret_from_fork_asm+0x1a/0x30 [ 12.593279] </TASK> [ 12.593291] [ 12.601160] Allocated by task 192: [ 12.601345] kasan_save_stack+0x45/0x70 [ 12.601557] kasan_save_track+0x18/0x40 [ 12.601708] kasan_save_alloc_info+0x3b/0x50 [ 12.601858] __kasan_kmalloc+0xb7/0xc0 [ 12.602029] __kmalloc_cache_noprof+0x189/0x420 [ 12.602255] kmalloc_oob_memset_4+0xac/0x330 [ 12.602466] kunit_try_run_case+0x1a5/0x480 [ 12.602670] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.603126] kthread+0x337/0x6f0 [ 12.603272] ret_from_fork+0x116/0x1d0 [ 12.603449] ret_from_fork_asm+0x1a/0x30 [ 12.603654] [ 12.603725] The buggy address belongs to the object at ffff888102b79d00 [ 12.603725] which belongs to the cache kmalloc-128 of size 128 [ 12.604371] The buggy address is located 117 bytes inside of [ 12.604371] allocated 120-byte region [ffff888102b79d00, ffff888102b79d78) [ 12.604878] [ 12.604966] The buggy address belongs to the physical page: [ 12.605273] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b79 [ 12.605656] flags: 0x200000000000000(node=0|zone=2) [ 12.605825] page_type: f5(slab) [ 12.605946] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.606223] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.606551] page dumped because: kasan: bad access detected [ 12.606814] [ 12.607020] Memory state around the buggy address: [ 12.607241] ffff888102b79c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.607515] ffff888102b79c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.607812] >ffff888102b79d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.608085] ^ [ 12.608430] ffff888102b79d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.608805] ffff888102b79e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.609016] ==================================================================