Date
July 2, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.154451] ================================================================== [ 18.154515] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 18.154567] Write of size 2 at addr fff00000c706f077 by task kunit_try_catch/172 [ 18.154649] [ 18.154683] CPU: 0 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.154762] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.154788] Hardware name: linux,dummy-virt (DT) [ 18.154915] Call trace: [ 18.155079] show_stack+0x20/0x38 (C) [ 18.155140] dump_stack_lvl+0x8c/0xd0 [ 18.155187] print_report+0x118/0x608 [ 18.155276] kasan_report+0xdc/0x128 [ 18.155321] kasan_check_range+0x100/0x1a8 [ 18.155404] __asan_memset+0x34/0x78 [ 18.155446] kmalloc_oob_memset_2+0x150/0x2f8 [ 18.155598] kunit_try_run_case+0x170/0x3f0 [ 18.155750] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.155856] kthread+0x328/0x630 [ 18.155900] ret_from_fork+0x10/0x20 [ 18.155965] [ 18.156010] Allocated by task 172: [ 18.156038] kasan_save_stack+0x3c/0x68 [ 18.156124] kasan_save_track+0x20/0x40 [ 18.156161] kasan_save_alloc_info+0x40/0x58 [ 18.156200] __kasan_kmalloc+0xd4/0xd8 [ 18.156251] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.156430] kmalloc_oob_memset_2+0xb0/0x2f8 [ 18.156473] kunit_try_run_case+0x170/0x3f0 [ 18.156509] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.156671] kthread+0x328/0x630 [ 18.156749] ret_from_fork+0x10/0x20 [ 18.156858] [ 18.156960] The buggy address belongs to the object at fff00000c706f000 [ 18.156960] which belongs to the cache kmalloc-128 of size 128 [ 18.157035] The buggy address is located 119 bytes inside of [ 18.157035] allocated 120-byte region [fff00000c706f000, fff00000c706f078) [ 18.157096] [ 18.157145] The buggy address belongs to the physical page: [ 18.157175] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10706f [ 18.157225] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.157407] page_type: f5(slab) [ 18.157457] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.157539] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.157647] page dumped because: kasan: bad access detected [ 18.157736] [ 18.157772] Memory state around the buggy address: [ 18.157918] fff00000c706ef00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.157960] fff00000c706ef80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 18.158199] >fff00000c706f000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.158385] ^ [ 18.158517] fff00000c706f080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.158652] fff00000c706f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.158722] ==================================================================
[ 11.468348] ================================================================== [ 11.468847] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 11.469178] Write of size 2 at addr ffff888103109977 by task kunit_try_catch/191 [ 11.469506] [ 11.469673] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.469721] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.469732] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.469753] Call Trace: [ 11.469765] <TASK> [ 11.469792] dump_stack_lvl+0x73/0xb0 [ 11.469824] print_report+0xd1/0x650 [ 11.469847] ? __virt_addr_valid+0x1db/0x2d0 [ 11.469870] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.469891] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.469912] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.469933] kasan_report+0x141/0x180 [ 11.469954] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.469979] kasan_check_range+0x10c/0x1c0 [ 11.470001] __asan_memset+0x27/0x50 [ 11.470019] kmalloc_oob_memset_2+0x166/0x330 [ 11.470040] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.470061] ? __schedule+0x10cc/0x2b60 [ 11.470083] ? __pfx_read_tsc+0x10/0x10 [ 11.470104] ? ktime_get_ts64+0x86/0x230 [ 11.470128] kunit_try_run_case+0x1a5/0x480 [ 11.470154] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.470174] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.470197] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.470218] ? __kthread_parkme+0x82/0x180 [ 11.470239] ? preempt_count_sub+0x50/0x80 [ 11.470262] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.470284] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.470306] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.470327] kthread+0x337/0x6f0 [ 11.470345] ? trace_preempt_on+0x20/0xc0 [ 11.470368] ? __pfx_kthread+0x10/0x10 [ 11.470401] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.470420] ? calculate_sigpending+0x7b/0xa0 [ 11.470444] ? __pfx_kthread+0x10/0x10 [ 11.470464] ret_from_fork+0x116/0x1d0 [ 11.470481] ? __pfx_kthread+0x10/0x10 [ 11.470500] ret_from_fork_asm+0x1a/0x30 [ 11.470532] </TASK> [ 11.470543] [ 11.480736] Allocated by task 191: [ 11.480953] kasan_save_stack+0x45/0x70 [ 11.481115] kasan_save_track+0x18/0x40 [ 11.481291] kasan_save_alloc_info+0x3b/0x50 [ 11.481510] __kasan_kmalloc+0xb7/0xc0 [ 11.481644] __kmalloc_cache_noprof+0x189/0x420 [ 11.481800] kmalloc_oob_memset_2+0xac/0x330 [ 11.481953] kunit_try_run_case+0x1a5/0x480 [ 11.482179] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.482440] kthread+0x337/0x6f0 [ 11.482607] ret_from_fork+0x116/0x1d0 [ 11.482844] ret_from_fork_asm+0x1a/0x30 [ 11.482990] [ 11.483063] The buggy address belongs to the object at ffff888103109900 [ 11.483063] which belongs to the cache kmalloc-128 of size 128 [ 11.483548] The buggy address is located 119 bytes inside of [ 11.483548] allocated 120-byte region [ffff888103109900, ffff888103109978) [ 11.484313] [ 11.484416] The buggy address belongs to the physical page: [ 11.484726] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103109 [ 11.485077] flags: 0x200000000000000(node=0|zone=2) [ 11.485259] page_type: f5(slab) [ 11.485393] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.485696] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.486208] page dumped because: kasan: bad access detected [ 11.486473] [ 11.486542] Memory state around the buggy address: [ 11.486941] ffff888103109800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.487212] ffff888103109880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.487517] >ffff888103109900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.487865] ^ [ 11.488099] ffff888103109980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.488425] ffff888103109a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.488706] ==================================================================