Date
July 4, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.627251] ================================================================== [ 29.627320] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 29.627418] Write of size 16 at addr fff00000c5a97e69 by task kunit_try_catch/211 [ 29.627499] [ 29.627576] CPU: 0 UID: 0 PID: 211 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT [ 29.627684] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.627711] Hardware name: linux,dummy-virt (DT) [ 29.627779] Call trace: [ 29.627828] show_stack+0x20/0x38 (C) [ 29.628050] dump_stack_lvl+0x8c/0xd0 [ 29.628152] print_report+0x118/0x608 [ 29.628206] kasan_report+0xdc/0x128 [ 29.628252] kasan_check_range+0x100/0x1a8 [ 29.628297] __asan_memset+0x34/0x78 [ 29.628466] kmalloc_oob_memset_16+0x150/0x2f8 [ 29.628613] kunit_try_run_case+0x170/0x3f0 [ 29.628753] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.628810] kthread+0x328/0x630 [ 29.628851] ret_from_fork+0x10/0x20 [ 29.628895] [ 29.628968] Allocated by task 211: [ 29.629003] kasan_save_stack+0x3c/0x68 [ 29.629093] kasan_save_track+0x20/0x40 [ 29.629185] kasan_save_alloc_info+0x40/0x58 [ 29.629262] __kasan_kmalloc+0xd4/0xd8 [ 29.629347] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.629387] kmalloc_oob_memset_16+0xb0/0x2f8 [ 29.629483] kunit_try_run_case+0x170/0x3f0 [ 29.629571] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.629618] kthread+0x328/0x630 [ 29.629652] ret_from_fork+0x10/0x20 [ 29.629687] [ 29.629717] The buggy address belongs to the object at fff00000c5a97e00 [ 29.629717] which belongs to the cache kmalloc-128 of size 128 [ 29.629776] The buggy address is located 105 bytes inside of [ 29.629776] allocated 120-byte region [fff00000c5a97e00, fff00000c5a97e78) [ 29.629837] [ 29.629858] The buggy address belongs to the physical page: [ 29.629922] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a97 [ 29.629995] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.630255] page_type: f5(slab) [ 29.630311] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 29.630466] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.630626] page dumped because: kasan: bad access detected [ 29.630658] [ 29.630683] Memory state around the buggy address: [ 29.630715] fff00000c5a97d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.630912] fff00000c5a97d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.630956] >fff00000c5a97e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.630993] ^ [ 29.631033] fff00000c5a97e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.631158] fff00000c5a97f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.631288] ==================================================================
[ 25.071050] ================================================================== [ 25.072498] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 25.073048] Write of size 16 at addr ffff888105aac269 by task kunit_try_catch/227 [ 25.073429] [ 25.073635] CPU: 0 UID: 0 PID: 227 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 25.073696] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.073711] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.073737] Call Trace: [ 25.073753] <TASK> [ 25.073776] dump_stack_lvl+0x73/0xb0 [ 25.073811] print_report+0xd1/0x650 [ 25.073837] ? __virt_addr_valid+0x1db/0x2d0 [ 25.073864] ? kmalloc_oob_memset_16+0x166/0x330 [ 25.073888] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.073917] ? kmalloc_oob_memset_16+0x166/0x330 [ 25.073961] kasan_report+0x141/0x180 [ 25.073986] ? kmalloc_oob_memset_16+0x166/0x330 [ 25.074016] kasan_check_range+0x10c/0x1c0 [ 25.074042] __asan_memset+0x27/0x50 [ 25.074068] kmalloc_oob_memset_16+0x166/0x330 [ 25.074094] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 25.074119] ? __schedule+0x10cc/0x2b60 [ 25.074147] ? __pfx_read_tsc+0x10/0x10 [ 25.074184] ? ktime_get_ts64+0x86/0x230 [ 25.074214] kunit_try_run_case+0x1a5/0x480 [ 25.074245] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.074272] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.074300] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.074327] ? __kthread_parkme+0x82/0x180 [ 25.074351] ? preempt_count_sub+0x50/0x80 [ 25.074378] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.074419] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.074448] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.074475] kthread+0x337/0x6f0 [ 25.074498] ? trace_preempt_on+0x20/0xc0 [ 25.074528] ? __pfx_kthread+0x10/0x10 [ 25.074554] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.074582] ? calculate_sigpending+0x7b/0xa0 [ 25.074610] ? __pfx_kthread+0x10/0x10 [ 25.074634] ret_from_fork+0x116/0x1d0 [ 25.074657] ? __pfx_kthread+0x10/0x10 [ 25.074681] ret_from_fork_asm+0x1a/0x30 [ 25.074718] </TASK> [ 25.074733] [ 25.084309] Allocated by task 227: [ 25.084534] kasan_save_stack+0x45/0x70 [ 25.084767] kasan_save_track+0x18/0x40 [ 25.085680] kasan_save_alloc_info+0x3b/0x50 [ 25.086088] __kasan_kmalloc+0xb7/0xc0 [ 25.086263] __kmalloc_cache_noprof+0x189/0x420 [ 25.086447] kmalloc_oob_memset_16+0xac/0x330 [ 25.086609] kunit_try_run_case+0x1a5/0x480 [ 25.086766] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.086953] kthread+0x337/0x6f0 [ 25.087079] ret_from_fork+0x116/0x1d0 [ 25.087219] ret_from_fork_asm+0x1a/0x30 [ 25.087367] [ 25.087553] The buggy address belongs to the object at ffff888105aac200 [ 25.087553] which belongs to the cache kmalloc-128 of size 128 [ 25.088665] The buggy address is located 105 bytes inside of [ 25.088665] allocated 120-byte region [ffff888105aac200, ffff888105aac278) [ 25.090085] [ 25.090263] The buggy address belongs to the physical page: [ 25.090877] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105aac [ 25.091740] flags: 0x200000000000000(node=0|zone=2) [ 25.092274] page_type: f5(slab) [ 25.092632] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.093524] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.094271] page dumped because: kasan: bad access detected [ 25.094965] [ 25.095344] Memory state around the buggy address: [ 25.095588] ffff888105aac100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.095822] ffff888105aac180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.096494] >ffff888105aac200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.097247] ^ [ 25.097947] ffff888105aac280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.098762] ffff888105aac300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.099628] ==================================================================