Date
June 17, 2025, 3:40 p.m.
| Environment | |
|---|---|
| qemu-x86_64 |
[ 19.389545] ================================================================== [ 19.390338] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 19.391516] Write of size 8 at addr ffff888102ed7371 by task kunit_try_catch/196 [ 19.392791] [ 19.393107] CPU: 1 UID: 0 PID: 196 Comm: kunit_try_catch Tainted: G B N 6.15.3-rc1 #1 PREEMPT(voluntary) [ 19.393265] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.393312] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 19.393389] Call Trace: [ 19.393438] <TASK> [ 19.393498] dump_stack_lvl+0x73/0xb0 [ 19.393570] print_report+0xd1/0x650 [ 19.393611] ? __virt_addr_valid+0x1db/0x2d0 [ 19.393646] ? kmalloc_oob_memset_8+0x166/0x330 [ 19.393680] ? kasan_complete_mode_report_info+0x2a/0x200 [ 19.393714] ? kmalloc_oob_memset_8+0x166/0x330 [ 19.393748] kasan_report+0x141/0x180 [ 19.393782] ? kmalloc_oob_memset_8+0x166/0x330 [ 19.393822] kasan_check_range+0x10c/0x1c0 [ 19.393851] __asan_memset+0x27/0x50 [ 19.393880] kmalloc_oob_memset_8+0x166/0x330 [ 19.393918] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 19.393968] ? __schedule+0x10cc/0x2b60 [ 19.394049] ? __pfx_read_tsc+0x10/0x10 [ 19.394108] ? ktime_get_ts64+0x86/0x230 [ 19.394181] kunit_try_run_case+0x1a5/0x480 [ 19.394359] ? __pfx_kunit_try_run_case+0x10/0x10 [ 19.394434] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 19.394512] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 19.394562] ? __kthread_parkme+0x82/0x180 [ 19.394598] ? preempt_count_sub+0x50/0x80 [ 19.394636] ? __pfx_kunit_try_run_case+0x10/0x10 [ 19.394672] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 19.394705] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 19.394739] kthread+0x337/0x6f0 [ 19.394763] ? trace_preempt_on+0x20/0xc0 [ 19.394798] ? __pfx_kthread+0x10/0x10 [ 19.394823] ? _raw_spin_unlock_irq+0x47/0x80 [ 19.394853] ? calculate_sigpending+0x7b/0xa0 [ 19.394884] ? __pfx_kthread+0x10/0x10 [ 19.394908] ret_from_fork+0x41/0x80 [ 19.394938] ? __pfx_kthread+0x10/0x10 [ 19.395050] ret_from_fork_asm+0x1a/0x30 [ 19.395140] </TASK> [ 19.395169] [ 19.418119] Allocated by task 196: [ 19.418540] kasan_save_stack+0x45/0x70 [ 19.419113] kasan_save_track+0x18/0x40 [ 19.419850] kasan_save_alloc_info+0x3b/0x50 [ 19.420252] __kasan_kmalloc+0xb7/0xc0 [ 19.420661] __kmalloc_cache_noprof+0x189/0x420 [ 19.421101] kmalloc_oob_memset_8+0xac/0x330 [ 19.422079] kunit_try_run_case+0x1a5/0x480 [ 19.422718] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 19.423378] kthread+0x337/0x6f0 [ 19.423715] ret_from_fork+0x41/0x80 [ 19.424356] ret_from_fork_asm+0x1a/0x30 [ 19.424670] [ 19.424910] The buggy address belongs to the object at ffff888102ed7300 [ 19.424910] which belongs to the cache kmalloc-128 of size 128 [ 19.426848] The buggy address is located 113 bytes inside of [ 19.426848] allocated 120-byte region [ffff888102ed7300, ffff888102ed7378) [ 19.428361] [ 19.428555] The buggy address belongs to the physical page: [ 19.428975] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ed7 [ 19.429561] flags: 0x200000000000000(node=0|zone=2) [ 19.429940] page_type: f5(slab) [ 19.430225] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 19.431809] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.432657] page dumped because: kasan: bad access detected [ 19.433375] [ 19.433636] Memory state around the buggy address: [ 19.434241] ffff888102ed7200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.435237] ffff888102ed7280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.435820] >ffff888102ed7300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.436631] ^ [ 19.437395] ffff888102ed7380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.438197] ffff888102ed7400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.438792] ==================================================================