Date
July 5, 2025, 5:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.361996] ================================================================== [ 18.362110] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 18.362195] Write of size 8 at addr fff00000c5cbbd71 by task kunit_try_catch/176 [ 18.362387] [ 18.362436] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.362732] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.362826] Hardware name: linux,dummy-virt (DT) [ 18.362920] Call trace: [ 18.363020] show_stack+0x20/0x38 (C) [ 18.363209] dump_stack_lvl+0x8c/0xd0 [ 18.363282] print_report+0x118/0x608 [ 18.363459] kasan_report+0xdc/0x128 [ 18.363519] kasan_check_range+0x100/0x1a8 [ 18.363788] __asan_memset+0x34/0x78 [ 18.363925] kmalloc_oob_memset_8+0x150/0x2f8 [ 18.364105] kunit_try_run_case+0x170/0x3f0 [ 18.364298] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.364422] kthread+0x328/0x630 [ 18.364464] ret_from_fork+0x10/0x20 [ 18.364528] [ 18.364546] Allocated by task 176: [ 18.364608] kasan_save_stack+0x3c/0x68 [ 18.364665] kasan_save_track+0x20/0x40 [ 18.364713] kasan_save_alloc_info+0x40/0x58 [ 18.364767] __kasan_kmalloc+0xd4/0xd8 [ 18.364805] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.364843] kmalloc_oob_memset_8+0xb0/0x2f8 [ 18.364888] kunit_try_run_case+0x170/0x3f0 [ 18.364933] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.364984] kthread+0x328/0x630 [ 18.365016] ret_from_fork+0x10/0x20 [ 18.365050] [ 18.365069] The buggy address belongs to the object at fff00000c5cbbd00 [ 18.365069] which belongs to the cache kmalloc-128 of size 128 [ 18.365144] The buggy address is located 113 bytes inside of [ 18.365144] allocated 120-byte region [fff00000c5cbbd00, fff00000c5cbbd78) [ 18.365209] [ 18.365228] The buggy address belongs to the physical page: [ 18.365262] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105cbb [ 18.365318] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.365373] page_type: f5(slab) [ 18.365409] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.365456] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.365504] page dumped because: kasan: bad access detected [ 18.365542] [ 18.365560] Memory state around the buggy address: [ 18.365604] fff00000c5cbbc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.365645] fff00000c5cbbc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.365700] >fff00000c5cbbd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.365736] ^ [ 18.365774] fff00000c5cbbd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.365813] fff00000c5cbbe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.365867] ==================================================================
[ 11.711965] ================================================================== [ 11.712929] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 11.713843] Write of size 8 at addr ffff8881031a0571 by task kunit_try_catch/194 [ 11.714146] [ 11.714240] CPU: 0 UID: 0 PID: 194 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.714284] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.714296] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.714317] Call Trace: [ 11.714330] <TASK> [ 11.714346] dump_stack_lvl+0x73/0xb0 [ 11.714376] print_report+0xd1/0x650 [ 11.714398] ? __virt_addr_valid+0x1db/0x2d0 [ 11.714419] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.714439] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.714471] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.714492] kasan_report+0x141/0x180 [ 11.714514] ? kmalloc_oob_memset_8+0x166/0x330 [ 11.714553] kasan_check_range+0x10c/0x1c0 [ 11.714576] __asan_memset+0x27/0x50 [ 11.714595] kmalloc_oob_memset_8+0x166/0x330 [ 11.714623] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 11.714645] ? __schedule+0x10cc/0x2b60 [ 11.714666] ? __pfx_read_tsc+0x10/0x10 [ 11.714686] ? ktime_get_ts64+0x86/0x230 [ 11.714717] kunit_try_run_case+0x1a5/0x480 [ 11.714741] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.714762] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.714784] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.714806] ? __kthread_parkme+0x82/0x180 [ 11.714825] ? preempt_count_sub+0x50/0x80 [ 11.714847] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.714869] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.714891] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.714913] kthread+0x337/0x6f0 [ 11.714931] ? trace_preempt_on+0x20/0xc0 [ 11.714953] ? __pfx_kthread+0x10/0x10 [ 11.714973] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.714992] ? calculate_sigpending+0x7b/0xa0 [ 11.715014] ? __pfx_kthread+0x10/0x10 [ 11.715035] ret_from_fork+0x116/0x1d0 [ 11.715052] ? __pfx_kthread+0x10/0x10 [ 11.715071] ret_from_fork_asm+0x1a/0x30 [ 11.715101] </TASK> [ 11.715112] [ 11.730517] Allocated by task 194: [ 11.730773] kasan_save_stack+0x45/0x70 [ 11.731175] kasan_save_track+0x18/0x40 [ 11.731654] kasan_save_alloc_info+0x3b/0x50 [ 11.731815] __kasan_kmalloc+0xb7/0xc0 [ 11.731948] __kmalloc_cache_noprof+0x189/0x420 [ 11.732105] kmalloc_oob_memset_8+0xac/0x330 [ 11.732355] kunit_try_run_case+0x1a5/0x480 [ 11.732671] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.733183] kthread+0x337/0x6f0 [ 11.733437] ret_from_fork+0x116/0x1d0 [ 11.733829] ret_from_fork_asm+0x1a/0x30 [ 11.733977] [ 11.734053] The buggy address belongs to the object at ffff8881031a0500 [ 11.734053] which belongs to the cache kmalloc-128 of size 128 [ 11.734985] The buggy address is located 113 bytes inside of [ 11.734985] allocated 120-byte region [ffff8881031a0500, ffff8881031a0578) [ 11.736354] [ 11.736539] The buggy address belongs to the physical page: [ 11.736966] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1031a0 [ 11.737277] flags: 0x200000000000000(node=0|zone=2) [ 11.737779] page_type: f5(slab) [ 11.738103] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.738858] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.739444] page dumped because: kasan: bad access detected [ 11.739973] [ 11.740049] Memory state around the buggy address: [ 11.740220] ffff8881031a0400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.740952] ffff8881031a0480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.741662] >ffff8881031a0500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.742026] ^ [ 11.742304] ffff8881031a0580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.742967] ffff8881031a0600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.743827] ==================================================================