Date
July 5, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 21.909996] ================================================================== [ 21.910180] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 21.910303] Read of size 1 at addr fff00000c79e2758 by task kunit_try_catch/258 [ 21.910423] [ 21.910507] CPU: 0 UID: 0 PID: 258 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 21.910906] Tainted: [B]=BAD_PAGE, [N]=TEST [ 21.911018] Hardware name: linux,dummy-virt (DT) [ 21.911125] Call trace: [ 21.911179] show_stack+0x20/0x38 (C) [ 21.911335] dump_stack_lvl+0x8c/0xd0 [ 21.911504] print_report+0x118/0x608 [ 21.911634] kasan_report+0xdc/0x128 [ 21.911805] __asan_report_load1_noabort+0x20/0x30 [ 21.911926] memcmp+0x198/0x1d8 [ 21.912016] kasan_memcmp+0x16c/0x300 [ 21.912222] kunit_try_run_case+0x170/0x3f0 [ 21.912583] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.912736] kthread+0x328/0x630 [ 21.912924] ret_from_fork+0x10/0x20 [ 21.913091] [ 21.913135] Allocated by task 258: [ 21.913204] kasan_save_stack+0x3c/0x68 [ 21.913301] kasan_save_track+0x20/0x40 [ 21.913406] kasan_save_alloc_info+0x40/0x58 [ 21.913505] __kasan_kmalloc+0xd4/0xd8 [ 21.913588] __kmalloc_cache_noprof+0x16c/0x3c0 [ 21.913691] kasan_memcmp+0xbc/0x300 [ 21.913779] kunit_try_run_case+0x170/0x3f0 [ 21.913874] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 21.914015] kthread+0x328/0x630 [ 21.914095] ret_from_fork+0x10/0x20 [ 21.914170] [ 21.914216] The buggy address belongs to the object at fff00000c79e2740 [ 21.914216] which belongs to the cache kmalloc-32 of size 32 [ 21.914404] The buggy address is located 0 bytes to the right of [ 21.914404] allocated 24-byte region [fff00000c79e2740, fff00000c79e2758) [ 21.915016] [ 21.915244] The buggy address belongs to the physical page: [ 21.915325] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1079e2 [ 21.915493] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 21.915621] page_type: f5(slab) [ 21.915752] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 21.915927] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 21.916076] page dumped because: kasan: bad access detected [ 21.916168] [ 21.916242] Memory state around the buggy address: [ 21.916347] fff00000c79e2600: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 21.916462] fff00000c79e2680: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 21.916560] >fff00000c79e2700: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 21.916870] ^ [ 21.917078] fff00000c79e2780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.917187] fff00000c79e2800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 21.917287] ==================================================================
[ 15.737000] ================================================================== [ 15.738700] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 15.740240] Read of size 1 at addr ffff888103347998 by task kunit_try_catch/275 [ 15.741304] [ 15.741432] CPU: 1 UID: 0 PID: 275 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 15.741495] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.741510] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.741538] Call Trace: [ 15.741555] <TASK> [ 15.741578] dump_stack_lvl+0x73/0xb0 [ 15.741617] print_report+0xd1/0x650 [ 15.741668] ? __virt_addr_valid+0x1db/0x2d0 [ 15.741698] ? memcmp+0x1b4/0x1d0 [ 15.741720] ? kasan_complete_mode_report_info+0x2a/0x200 [ 15.741746] ? memcmp+0x1b4/0x1d0 [ 15.741776] kasan_report+0x141/0x180 [ 15.741802] ? memcmp+0x1b4/0x1d0 [ 15.741828] __asan_report_load1_noabort+0x18/0x20 [ 15.741856] memcmp+0x1b4/0x1d0 [ 15.741880] kasan_memcmp+0x18f/0x390 [ 15.741904] ? trace_hardirqs_on+0x37/0xe0 [ 15.741933] ? __pfx_kasan_memcmp+0x10/0x10 [ 15.741957] ? finish_task_switch.isra.0+0x153/0x700 [ 15.741986] ? __switch_to+0x47/0xf50 [ 15.742021] ? __pfx_read_tsc+0x10/0x10 [ 15.742047] ? ktime_get_ts64+0x86/0x230 [ 15.742076] kunit_try_run_case+0x1a5/0x480 [ 15.742107] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.742134] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 15.742163] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 15.742190] ? __kthread_parkme+0x82/0x180 [ 15.742215] ? preempt_count_sub+0x50/0x80 [ 15.742242] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.742269] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.742297] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.742324] kthread+0x337/0x6f0 [ 15.742347] ? trace_preempt_on+0x20/0xc0 [ 15.742373] ? __pfx_kthread+0x10/0x10 [ 15.742397] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.742427] ? calculate_sigpending+0x7b/0xa0 [ 15.742456] ? __pfx_kthread+0x10/0x10 [ 15.742481] ret_from_fork+0x116/0x1d0 [ 15.742503] ? __pfx_kthread+0x10/0x10 [ 15.742527] ret_from_fork_asm+0x1a/0x30 [ 15.742564] </TASK> [ 15.742578] [ 15.762135] Allocated by task 275: [ 15.762910] kasan_save_stack+0x45/0x70 [ 15.763566] kasan_save_track+0x18/0x40 [ 15.764518] kasan_save_alloc_info+0x3b/0x50 [ 15.765255] __kasan_kmalloc+0xb7/0xc0 [ 15.765722] __kmalloc_cache_noprof+0x189/0x420 [ 15.766446] kasan_memcmp+0xb7/0x390 [ 15.766909] kunit_try_run_case+0x1a5/0x480 [ 15.767326] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.767698] kthread+0x337/0x6f0 [ 15.767857] ret_from_fork+0x116/0x1d0 [ 15.768023] ret_from_fork_asm+0x1a/0x30 [ 15.768191] [ 15.768283] The buggy address belongs to the object at ffff888103347980 [ 15.768283] which belongs to the cache kmalloc-32 of size 32 [ 15.768754] The buggy address is located 0 bytes to the right of [ 15.768754] allocated 24-byte region [ffff888103347980, ffff888103347998) [ 15.769367] [ 15.769571] The buggy address belongs to the physical page: [ 15.770464] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103347 [ 15.771546] flags: 0x200000000000000(node=0|zone=2) [ 15.772203] page_type: f5(slab) [ 15.772875] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 15.773746] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 15.774633] page dumped because: kasan: bad access detected [ 15.775396] [ 15.775590] Memory state around the buggy address: [ 15.776236] ffff888103347880: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 15.777195] ffff888103347900: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc [ 15.777488] >ffff888103347980: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.777999] ^ [ 15.778480] ffff888103347a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.779340] ffff888103347a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.780059] ==================================================================