Date
May 23, 2025, 11:07 p.m.
Environment | |
---|---|
qemu-x86_64 |
[ 12.577845] ================================================================== [ 12.578422] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 12.578770] Write of size 16 at addr ffff8881029e3040 by task kunit_try_catch/185 [ 12.579194] [ 12.579380] CPU: 1 UID: 0 PID: 185 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc7 #1 PREEMPT(voluntary) [ 12.579430] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.579443] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.579464] Call Trace: [ 12.579476] <TASK> [ 12.579493] dump_stack_lvl+0x73/0xb0 [ 12.579523] print_report+0xd1/0x650 [ 12.579545] ? __virt_addr_valid+0x1db/0x2d0 [ 12.579567] ? kmalloc_oob_16+0x452/0x4a0 [ 12.579587] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.579608] ? kmalloc_oob_16+0x452/0x4a0 [ 12.579630] kasan_report+0x141/0x180 [ 12.579651] ? kmalloc_oob_16+0x452/0x4a0 [ 12.579677] __asan_report_store16_noabort+0x1b/0x30 [ 12.579698] kmalloc_oob_16+0x452/0x4a0 [ 12.579719] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 12.579740] ? __schedule+0x10cc/0x2b30 [ 12.579762] ? __pfx_read_tsc+0x10/0x10 [ 12.579783] ? ktime_get_ts64+0x86/0x230 [ 12.579808] kunit_try_run_case+0x1a5/0x480 [ 12.579831] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.579852] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.579874] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.579908] ? __kthread_parkme+0x82/0x180 [ 12.579929] ? preempt_count_sub+0x50/0x80 [ 12.579954] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.579977] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.579999] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.580020] kthread+0x337/0x6f0 [ 12.580037] ? trace_preempt_on+0x20/0xc0 [ 12.580060] ? __pfx_kthread+0x10/0x10 [ 12.580077] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.580097] ? calculate_sigpending+0x7b/0xa0 [ 12.580119] ? __pfx_kthread+0x10/0x10 [ 12.580137] ret_from_fork+0x41/0x80 [ 12.580157] ? __pfx_kthread+0x10/0x10 [ 12.580174] ret_from_fork_asm+0x1a/0x30 [ 12.580205] </TASK> [ 12.580217] [ 12.587963] Allocated by task 185: [ 12.588151] kasan_save_stack+0x45/0x70 [ 12.588367] kasan_save_track+0x18/0x40 [ 12.588544] kasan_save_alloc_info+0x3b/0x50 [ 12.588692] __kasan_kmalloc+0xb7/0xc0 [ 12.589040] __kmalloc_cache_noprof+0x189/0x420 [ 12.589303] kmalloc_oob_16+0xa8/0x4a0 [ 12.589572] kunit_try_run_case+0x1a5/0x480 [ 12.589759] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.590059] kthread+0x337/0x6f0 [ 12.590228] ret_from_fork+0x41/0x80 [ 12.590386] ret_from_fork_asm+0x1a/0x30 [ 12.590739] [ 12.590825] The buggy address belongs to the object at ffff8881029e3040 [ 12.590825] which belongs to the cache kmalloc-16 of size 16 [ 12.591360] The buggy address is located 0 bytes inside of [ 12.591360] allocated 13-byte region [ffff8881029e3040, ffff8881029e304d) [ 12.591876] [ 12.591954] The buggy address belongs to the physical page: [ 12.592130] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029e3 [ 12.592580] flags: 0x200000000000000(node=0|zone=2) [ 12.593237] page_type: f5(slab) [ 12.593460] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 12.593802] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 12.594178] page dumped because: kasan: bad access detected [ 12.594367] [ 12.594438] Memory state around the buggy address: [ 12.594596] ffff8881029e2f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.594924] ffff8881029e2f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.595385] >ffff8881029e3000: fa fb fc fc fa fb fc fc 00 05 fc fc 00 00 fc fc [ 12.595779] ^ [ 12.596088] ffff8881029e3080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.596383] ffff8881029e3100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.596622] ==================================================================