Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.359685] ================================================================== [ 15.359831] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 15.359937] Write of size 2 at addr fff00000c3fc2b77 by task kunit_try_catch/172 [ 15.359988] [ 15.360018] CPU: 0 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.360096] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.360122] Hardware name: linux,dummy-virt (DT) [ 15.360151] Call trace: [ 15.360200] show_stack+0x20/0x38 (C) [ 15.360247] dump_stack_lvl+0x8c/0xd0 [ 15.360290] print_report+0x118/0x5d0 [ 15.360335] kasan_report+0xdc/0x128 [ 15.360383] kasan_check_range+0x100/0x1a8 [ 15.360467] __asan_memset+0x34/0x78 [ 15.360525] kmalloc_oob_memset_2+0x150/0x2f8 [ 15.360571] kunit_try_run_case+0x170/0x3f0 [ 15.360617] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.360677] kthread+0x328/0x630 [ 15.360716] ret_from_fork+0x10/0x20 [ 15.360761] [ 15.360828] Allocated by task 172: [ 15.360857] kasan_save_stack+0x3c/0x68 [ 15.360897] kasan_save_track+0x20/0x40 [ 15.360933] kasan_save_alloc_info+0x40/0x58 [ 15.360972] __kasan_kmalloc+0xd4/0xd8 [ 15.361087] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.361135] kmalloc_oob_memset_2+0xb0/0x2f8 [ 15.361171] kunit_try_run_case+0x170/0x3f0 [ 15.361207] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.361249] kthread+0x328/0x630 [ 15.361280] ret_from_fork+0x10/0x20 [ 15.361330] [ 15.361378] The buggy address belongs to the object at fff00000c3fc2b00 [ 15.361378] which belongs to the cache kmalloc-128 of size 128 [ 15.361459] The buggy address is located 119 bytes inside of [ 15.361459] allocated 120-byte region [fff00000c3fc2b00, fff00000c3fc2b78) [ 15.361520] [ 15.361539] The buggy address belongs to the physical page: [ 15.361832] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fc2 [ 15.361917] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.362004] page_type: f5(slab) [ 15.362045] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.362116] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.362155] page dumped because: kasan: bad access detected [ 15.362185] [ 15.362202] Memory state around the buggy address: [ 15.362233] fff00000c3fc2a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.362273] fff00000c3fc2a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.362313] >fff00000c3fc2b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.362349] ^ [ 15.362387] fff00000c3fc2b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.362426] fff00000c3fc2c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.362462] ==================================================================
[ 12.358873] ================================================================== [ 12.359324] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 12.359571] Write of size 2 at addr ffff88810272b777 by task kunit_try_catch/189 [ 12.359796] [ 12.359880] CPU: 1 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.359932] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.359943] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.359962] Call Trace: [ 12.359973] <TASK> [ 12.359986] dump_stack_lvl+0x73/0xb0 [ 12.360012] print_report+0xd1/0x610 [ 12.360033] ? __virt_addr_valid+0x1db/0x2d0 [ 12.360053] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.360073] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.360093] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.360114] kasan_report+0x141/0x180 [ 12.360134] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.360158] kasan_check_range+0x10c/0x1c0 [ 12.360180] __asan_memset+0x27/0x50 [ 12.360197] kmalloc_oob_memset_2+0x166/0x330 [ 12.360218] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.360239] ? __schedule+0x10cc/0x2b60 [ 12.360259] ? __pfx_read_tsc+0x10/0x10 [ 12.360278] ? ktime_get_ts64+0x86/0x230 [ 12.360301] kunit_try_run_case+0x1a5/0x480 [ 12.360323] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.360344] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.360365] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.360387] ? __kthread_parkme+0x82/0x180 [ 12.360405] ? preempt_count_sub+0x50/0x80 [ 12.360426] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.360448] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.360469] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.360491] kthread+0x337/0x6f0 [ 12.360508] ? trace_preempt_on+0x20/0xc0 [ 12.360529] ? __pfx_kthread+0x10/0x10 [ 12.360548] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.360567] ? calculate_sigpending+0x7b/0xa0 [ 12.360589] ? __pfx_kthread+0x10/0x10 [ 12.360608] ret_from_fork+0x116/0x1d0 [ 12.360625] ? __pfx_kthread+0x10/0x10 [ 12.360643] ret_from_fork_asm+0x1a/0x30 [ 12.360672] </TASK> [ 12.360681] [ 12.374976] Allocated by task 189: [ 12.375124] kasan_save_stack+0x45/0x70 [ 12.375270] kasan_save_track+0x18/0x40 [ 12.375552] kasan_save_alloc_info+0x3b/0x50 [ 12.375958] __kasan_kmalloc+0xb7/0xc0 [ 12.376385] __kmalloc_cache_noprof+0x189/0x420 [ 12.376757] kmalloc_oob_memset_2+0xac/0x330 [ 12.376944] kunit_try_run_case+0x1a5/0x480 [ 12.377094] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.377264] kthread+0x337/0x6f0 [ 12.377446] ret_from_fork+0x116/0x1d0 [ 12.377739] ret_from_fork_asm+0x1a/0x30 [ 12.378043] [ 12.378181] The buggy address belongs to the object at ffff88810272b700 [ 12.378181] which belongs to the cache kmalloc-128 of size 128 [ 12.378919] The buggy address is located 119 bytes inside of [ 12.378919] allocated 120-byte region [ffff88810272b700, ffff88810272b778) [ 12.379585] [ 12.379810] The buggy address belongs to the physical page: [ 12.380073] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10272b [ 12.380458] flags: 0x200000000000000(node=0|zone=2) [ 12.380775] page_type: f5(slab) [ 12.380970] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.381332] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.381796] page dumped because: kasan: bad access detected [ 12.382083] [ 12.382190] Memory state around the buggy address: [ 12.382535] ffff88810272b600: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.382887] ffff88810272b680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.383224] >ffff88810272b700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.383743] ^ [ 12.384060] ffff88810272b780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.384469] ffff88810272b800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.384870] ==================================================================