Date
July 10, 2025, 6:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.886996] ================================================================== [ 16.887085] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 16.887139] Write of size 2 at addr fff00000c5a20077 by task kunit_try_catch/172 [ 16.887213] [ 16.887383] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.887475] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.887502] Hardware name: linux,dummy-virt (DT) [ 16.887539] Call trace: [ 16.887825] show_stack+0x20/0x38 (C) [ 16.888445] dump_stack_lvl+0x8c/0xd0 [ 16.888524] print_report+0x118/0x608 [ 16.888961] kasan_report+0xdc/0x128 [ 16.889032] kasan_check_range+0x100/0x1a8 [ 16.889194] __asan_memset+0x34/0x78 [ 16.889250] kmalloc_oob_memset_2+0x150/0x2f8 [ 16.889296] kunit_try_run_case+0x170/0x3f0 [ 16.889360] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.889413] kthread+0x328/0x630 [ 16.889455] ret_from_fork+0x10/0x20 [ 16.889994] [ 16.890103] Allocated by task 172: [ 16.890164] kasan_save_stack+0x3c/0x68 [ 16.890209] kasan_save_track+0x20/0x40 [ 16.890530] kasan_save_alloc_info+0x40/0x58 [ 16.890610] __kasan_kmalloc+0xd4/0xd8 [ 16.890860] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.890934] kmalloc_oob_memset_2+0xb0/0x2f8 [ 16.891308] kunit_try_run_case+0x170/0x3f0 [ 16.891641] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.891770] kthread+0x328/0x630 [ 16.891819] ret_from_fork+0x10/0x20 [ 16.891855] [ 16.891875] The buggy address belongs to the object at fff00000c5a20000 [ 16.891875] which belongs to the cache kmalloc-128 of size 128 [ 16.891939] The buggy address is located 119 bytes inside of [ 16.891939] allocated 120-byte region [fff00000c5a20000, fff00000c5a20078) [ 16.892008] [ 16.892029] The buggy address belongs to the physical page: [ 16.892065] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105a20 [ 16.892117] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.892162] page_type: f5(slab) [ 16.892205] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.892263] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.892307] page dumped because: kasan: bad access detected [ 16.892364] [ 16.892382] Memory state around the buggy address: [ 16.892412] fff00000c5a1ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.892452] fff00000c5a1ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.892498] >fff00000c5a20000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.892534] ^ [ 16.892572] fff00000c5a20080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.892613] fff00000c5a20100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.892665] ==================================================================
[ 12.588420] ================================================================== [ 12.589002] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 12.589319] Write of size 2 at addr ffff888102b0c477 by task kunit_try_catch/189 [ 12.589635] [ 12.589746] CPU: 0 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.589814] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.589825] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.589844] Call Trace: [ 12.589856] <TASK> [ 12.589870] dump_stack_lvl+0x73/0xb0 [ 12.589898] print_report+0xd1/0x650 [ 12.589920] ? __virt_addr_valid+0x1db/0x2d0 [ 12.589943] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.589964] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.589987] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.590061] kasan_report+0x141/0x180 [ 12.590106] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.590133] kasan_check_range+0x10c/0x1c0 [ 12.590158] __asan_memset+0x27/0x50 [ 12.590180] kmalloc_oob_memset_2+0x166/0x330 [ 12.590204] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.590228] ? __schedule+0x10cc/0x2b60 [ 12.590251] ? __pfx_read_tsc+0x10/0x10 [ 12.590270] ? ktime_get_ts64+0x86/0x230 [ 12.590294] kunit_try_run_case+0x1a5/0x480 [ 12.590317] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.590341] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.590366] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.590409] ? __kthread_parkme+0x82/0x180 [ 12.590429] ? preempt_count_sub+0x50/0x80 [ 12.590452] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.590476] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.590501] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.590525] kthread+0x337/0x6f0 [ 12.590544] ? trace_preempt_on+0x20/0xc0 [ 12.590567] ? __pfx_kthread+0x10/0x10 [ 12.590587] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.590608] ? calculate_sigpending+0x7b/0xa0 [ 12.590631] ? __pfx_kthread+0x10/0x10 [ 12.590671] ret_from_fork+0x116/0x1d0 [ 12.590689] ? __pfx_kthread+0x10/0x10 [ 12.590710] ret_from_fork_asm+0x1a/0x30 [ 12.590742] </TASK> [ 12.590752] [ 12.598618] Allocated by task 189: [ 12.598817] kasan_save_stack+0x45/0x70 [ 12.599141] kasan_save_track+0x18/0x40 [ 12.599367] kasan_save_alloc_info+0x3b/0x50 [ 12.599625] __kasan_kmalloc+0xb7/0xc0 [ 12.600057] __kmalloc_cache_noprof+0x189/0x420 [ 12.600291] kmalloc_oob_memset_2+0xac/0x330 [ 12.600498] kunit_try_run_case+0x1a5/0x480 [ 12.600702] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.600965] kthread+0x337/0x6f0 [ 12.601138] ret_from_fork+0x116/0x1d0 [ 12.601273] ret_from_fork_asm+0x1a/0x30 [ 12.601411] [ 12.601482] The buggy address belongs to the object at ffff888102b0c400 [ 12.601482] which belongs to the cache kmalloc-128 of size 128 [ 12.601925] The buggy address is located 119 bytes inside of [ 12.601925] allocated 120-byte region [ffff888102b0c400, ffff888102b0c478) [ 12.602456] [ 12.602548] The buggy address belongs to the physical page: [ 12.602800] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b0c [ 12.603275] flags: 0x200000000000000(node=0|zone=2) [ 12.603511] page_type: f5(slab) [ 12.603665] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.603983] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.604271] page dumped because: kasan: bad access detected [ 12.604546] [ 12.604666] Memory state around the buggy address: [ 12.604992] ffff888102b0c300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.605344] ffff888102b0c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.605665] >ffff888102b0c400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.606059] ^ [ 12.606364] ffff888102b0c480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.606726] ffff888102b0c500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.607252] ==================================================================