Date
July 12, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.432005] ================================================================== [ 19.432171] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 19.432878] Write of size 2 at addr fff00000c4569d77 by task kunit_try_catch/173 [ 19.433106] [ 19.433227] CPU: 0 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.433524] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.433603] Hardware name: linux,dummy-virt (DT) [ 19.433755] Call trace: [ 19.433973] show_stack+0x20/0x38 (C) [ 19.434437] dump_stack_lvl+0x8c/0xd0 [ 19.434677] print_report+0x118/0x608 [ 19.434842] kasan_report+0xdc/0x128 [ 19.434961] kasan_check_range+0x100/0x1a8 [ 19.435181] __asan_memset+0x34/0x78 [ 19.435735] kmalloc_oob_memset_2+0x150/0x2f8 [ 19.435914] kunit_try_run_case+0x170/0x3f0 [ 19.436146] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.436297] kthread+0x328/0x630 [ 19.436844] ret_from_fork+0x10/0x20 [ 19.437100] [ 19.437153] Allocated by task 173: [ 19.437320] kasan_save_stack+0x3c/0x68 [ 19.437443] kasan_save_track+0x20/0x40 [ 19.437743] kasan_save_alloc_info+0x40/0x58 [ 19.437848] __kasan_kmalloc+0xd4/0xd8 [ 19.437944] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.438068] kmalloc_oob_memset_2+0xb0/0x2f8 [ 19.438416] kunit_try_run_case+0x170/0x3f0 [ 19.438520] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.438642] kthread+0x328/0x630 [ 19.438720] ret_from_fork+0x10/0x20 [ 19.438852] [ 19.438924] The buggy address belongs to the object at fff00000c4569d00 [ 19.438924] which belongs to the cache kmalloc-128 of size 128 [ 19.439345] The buggy address is located 119 bytes inside of [ 19.439345] allocated 120-byte region [fff00000c4569d00, fff00000c4569d78) [ 19.439972] [ 19.440035] The buggy address belongs to the physical page: [ 19.440367] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104569 [ 19.440685] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.440837] page_type: f5(slab) [ 19.440936] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.441059] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.441792] page dumped because: kasan: bad access detected [ 19.441905] [ 19.442419] Memory state around the buggy address: [ 19.442518] fff00000c4569c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.442644] fff00000c4569c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.442755] >fff00000c4569d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.443476] ^ [ 19.443786] fff00000c4569d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.444498] fff00000c4569e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.444614] ==================================================================
[ 12.717231] ================================================================== [ 12.717726] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 12.718028] Write of size 2 at addr ffff888102b92677 by task kunit_try_catch/190 [ 12.718341] [ 12.718442] CPU: 0 UID: 0 PID: 190 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.718487] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.718498] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.718517] Call Trace: [ 12.718529] <TASK> [ 12.718543] dump_stack_lvl+0x73/0xb0 [ 12.719214] print_report+0xd1/0x650 [ 12.719260] ? __virt_addr_valid+0x1db/0x2d0 [ 12.719284] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.719307] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.719330] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.719352] kasan_report+0x141/0x180 [ 12.719373] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.719400] kasan_check_range+0x10c/0x1c0 [ 12.719424] __asan_memset+0x27/0x50 [ 12.719445] kmalloc_oob_memset_2+0x166/0x330 [ 12.719468] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.719491] ? __schedule+0x10cc/0x2b60 [ 12.719512] ? __pfx_read_tsc+0x10/0x10 [ 12.719533] ? ktime_get_ts64+0x86/0x230 [ 12.719557] kunit_try_run_case+0x1a5/0x480 [ 12.719580] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.719604] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.719627] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.719668] ? __kthread_parkme+0x82/0x180 [ 12.719700] ? preempt_count_sub+0x50/0x80 [ 12.719724] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.719756] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.719780] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.719805] kthread+0x337/0x6f0 [ 12.719833] ? trace_preempt_on+0x20/0xc0 [ 12.719857] ? __pfx_kthread+0x10/0x10 [ 12.719877] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.719899] ? calculate_sigpending+0x7b/0xa0 [ 12.719922] ? __pfx_kthread+0x10/0x10 [ 12.719943] ret_from_fork+0x116/0x1d0 [ 12.719961] ? __pfx_kthread+0x10/0x10 [ 12.719982] ret_from_fork_asm+0x1a/0x30 [ 12.720011] </TASK> [ 12.720022] [ 12.729720] Allocated by task 190: [ 12.729882] kasan_save_stack+0x45/0x70 [ 12.730222] kasan_save_track+0x18/0x40 [ 12.730514] kasan_save_alloc_info+0x3b/0x50 [ 12.730803] __kasan_kmalloc+0xb7/0xc0 [ 12.731136] __kmalloc_cache_noprof+0x189/0x420 [ 12.731313] kmalloc_oob_memset_2+0xac/0x330 [ 12.731884] kunit_try_run_case+0x1a5/0x480 [ 12.732093] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.732294] kthread+0x337/0x6f0 [ 12.732459] ret_from_fork+0x116/0x1d0 [ 12.732621] ret_from_fork_asm+0x1a/0x30 [ 12.732908] [ 12.733446] The buggy address belongs to the object at ffff888102b92600 [ 12.733446] which belongs to the cache kmalloc-128 of size 128 [ 12.734081] The buggy address is located 119 bytes inside of [ 12.734081] allocated 120-byte region [ffff888102b92600, ffff888102b92678) [ 12.734580] [ 12.735061] The buggy address belongs to the physical page: [ 12.735289] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b92 [ 12.735979] flags: 0x200000000000000(node=0|zone=2) [ 12.736208] page_type: f5(slab) [ 12.736339] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.736854] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.737169] page dumped because: kasan: bad access detected [ 12.737413] [ 12.737502] Memory state around the buggy address: [ 12.737709] ffff888102b92500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.739015] ffff888102b92580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.739836] >ffff888102b92600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.740069] ^ [ 12.740285] ffff888102b92680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.740497] ffff888102b92700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.740705] ==================================================================