Date
July 22, 2025, 5:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 32.597847] ================================================================== [ 32.597911] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 32.597972] Read of size 1 at addr fff00000c9227858 by task kunit_try_catch/288 [ 32.598025] [ 32.598059] CPU: 1 UID: 0 PID: 288 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250722 #1 PREEMPT [ 32.598150] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 32.598187] Hardware name: linux,dummy-virt (DT) [ 32.598220] Call trace: [ 32.598245] show_stack+0x20/0x38 (C) [ 32.598298] dump_stack_lvl+0x8c/0xd0 [ 32.598348] print_report+0x118/0x5e8 [ 32.598394] kasan_report+0xdc/0x128 [ 32.598440] __asan_report_load1_noabort+0x20/0x30 [ 32.598492] memcmp+0x198/0x1d8 [ 32.598538] kasan_memcmp+0x16c/0x300 [ 32.598585] kunit_try_run_case+0x170/0x3f0 [ 32.598636] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.598691] kthread+0x328/0x630 [ 32.598735] ret_from_fork+0x10/0x20 [ 32.598786] [ 32.598808] Allocated by task 288: [ 32.598872] kasan_save_stack+0x3c/0x68 [ 32.598933] kasan_save_track+0x20/0x40 [ 32.598971] kasan_save_alloc_info+0x40/0x58 [ 32.599017] __kasan_kmalloc+0xd4/0xd8 [ 32.599056] __kmalloc_cache_noprof+0x16c/0x3c0 [ 32.599101] kasan_memcmp+0xbc/0x300 [ 32.599140] kunit_try_run_case+0x170/0x3f0 [ 32.599179] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 32.599224] kthread+0x328/0x630 [ 32.599260] ret_from_fork+0x10/0x20 [ 32.599299] [ 32.599321] The buggy address belongs to the object at fff00000c9227840 [ 32.599321] which belongs to the cache kmalloc-32 of size 32 [ 32.599381] The buggy address is located 0 bytes to the right of [ 32.599381] allocated 24-byte region [fff00000c9227840, fff00000c9227858) [ 32.599447] [ 32.599469] The buggy address belongs to the physical page: [ 32.599506] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109227 [ 32.599561] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 32.599609] page_type: f5(slab) [ 32.599660] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 32.599720] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 32.599762] page dumped because: kasan: bad access detected [ 32.599795] [ 32.601043] Memory state around the buggy address: [ 32.601431] fff00000c9227700: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 32.601602] fff00000c9227780: 00 00 00 04 fc fc fc fc 00 00 00 fc fc fc fc fc [ 32.601798] >fff00000c9227800: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 32.602103] ^ [ 32.602378] fff00000c9227880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.602461] fff00000c9227900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.602839] ==================================================================
[ 26.965377] ================================================================== [ 26.965870] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 26.966142] Read of size 1 at addr ffff888106006018 by task kunit_try_catch/305 [ 26.966762] [ 26.966890] CPU: 1 UID: 0 PID: 305 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250722 #1 PREEMPT(voluntary) [ 26.966941] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.966954] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.966977] Call Trace: [ 26.966991] <TASK> [ 26.967006] dump_stack_lvl+0x73/0xb0 [ 26.967036] print_report+0xd1/0x640 [ 26.967063] ? __virt_addr_valid+0x1db/0x2d0 [ 26.967088] ? memcmp+0x1b4/0x1d0 [ 26.967108] ? kasan_complete_mode_report_info+0x2a/0x200 [ 26.967136] ? memcmp+0x1b4/0x1d0 [ 26.967157] kasan_report+0x141/0x180 [ 26.967180] ? memcmp+0x1b4/0x1d0 [ 26.967205] __asan_report_load1_noabort+0x18/0x20 [ 26.967231] memcmp+0x1b4/0x1d0 [ 26.967254] kasan_memcmp+0x18f/0x390 [ 26.967287] ? finish_task_switch.isra.0+0x156/0x700 [ 26.967312] ? __pfx_kasan_memcmp+0x10/0x10 [ 26.967333] ? finish_task_switch.isra.0+0x153/0x700 [ 26.967355] ? __switch_to+0x47/0xf80 [ 26.967385] ? __pfx_read_tsc+0x10/0x10 [ 26.967408] ? ktime_get_ts64+0x86/0x230 [ 26.967434] kunit_try_run_case+0x1a5/0x480 [ 26.967525] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.967553] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.967581] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.967607] ? __kthread_parkme+0x82/0x180 [ 26.967628] ? preempt_count_sub+0x50/0x80 [ 26.967651] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.967676] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.967701] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.967725] kthread+0x337/0x6f0 [ 26.967746] ? trace_preempt_on+0x20/0xc0 [ 26.967770] ? __pfx_kthread+0x10/0x10 [ 26.967792] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.967816] ? calculate_sigpending+0x7b/0xa0 [ 26.967853] ? __pfx_kthread+0x10/0x10 [ 26.967875] ret_from_fork+0x116/0x1d0 [ 26.967896] ? __pfx_kthread+0x10/0x10 [ 26.967917] ret_from_fork_asm+0x1a/0x30 [ 26.967949] </TASK> [ 26.967960] [ 26.975452] Allocated by task 305: [ 26.975629] kasan_save_stack+0x45/0x70 [ 26.975776] kasan_save_track+0x18/0x40 [ 26.975981] kasan_save_alloc_info+0x3b/0x50 [ 26.976189] __kasan_kmalloc+0xb7/0xc0 [ 26.976475] __kmalloc_cache_noprof+0x189/0x420 [ 26.976747] kasan_memcmp+0xb7/0x390 [ 26.976931] kunit_try_run_case+0x1a5/0x480 [ 26.977080] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.977257] kthread+0x337/0x6f0 [ 26.977419] ret_from_fork+0x116/0x1d0 [ 26.977607] ret_from_fork_asm+0x1a/0x30 [ 26.977796] [ 26.977933] The buggy address belongs to the object at ffff888106006000 [ 26.977933] which belongs to the cache kmalloc-32 of size 32 [ 26.978544] The buggy address is located 0 bytes to the right of [ 26.978544] allocated 24-byte region [ffff888106006000, ffff888106006018) [ 26.978983] [ 26.979076] The buggy address belongs to the physical page: [ 26.979332] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106006 [ 26.980051] flags: 0x200000000000000(node=0|zone=2) [ 26.980276] page_type: f5(slab) [ 26.980399] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 26.981047] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 26.981367] page dumped because: kasan: bad access detected [ 26.981541] [ 26.981664] Memory state around the buggy address: [ 26.981912] ffff888106005f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.982243] ffff888106005f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.982601] >ffff888106006000: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.982859] ^ [ 26.983054] ffff888106006080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.983399] ffff888106006100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.983898] ==================================================================