Date
July 11, 2025, 11:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.005535] ================================================================== [ 19.005599] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 19.005666] Read of size 1 at addr fff00000c5908098 by task kunit_try_catch/258 [ 19.005718] [ 19.005760] CPU: 1 UID: 0 PID: 258 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.005922] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.006052] Hardware name: linux,dummy-virt (DT) [ 19.006095] Call trace: [ 19.006175] show_stack+0x20/0x38 (C) [ 19.006240] dump_stack_lvl+0x8c/0xd0 [ 19.006291] print_report+0x118/0x608 [ 19.006597] kasan_report+0xdc/0x128 [ 19.006806] __asan_report_load1_noabort+0x20/0x30 [ 19.006947] memcmp+0x198/0x1d8 [ 19.007006] kasan_memcmp+0x16c/0x300 [ 19.007055] kunit_try_run_case+0x170/0x3f0 [ 19.007107] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.007164] kthread+0x328/0x630 [ 19.007211] ret_from_fork+0x10/0x20 [ 19.007263] [ 19.007284] Allocated by task 258: [ 19.007315] kasan_save_stack+0x3c/0x68 [ 19.007364] kasan_save_track+0x20/0x40 [ 19.007403] kasan_save_alloc_info+0x40/0x58 [ 19.007445] __kasan_kmalloc+0xd4/0xd8 [ 19.007483] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.007526] kasan_memcmp+0xbc/0x300 [ 19.007562] kunit_try_run_case+0x170/0x3f0 [ 19.007601] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.007646] kthread+0x328/0x630 [ 19.007681] ret_from_fork+0x10/0x20 [ 19.007718] [ 19.007739] The buggy address belongs to the object at fff00000c5908080 [ 19.007739] which belongs to the cache kmalloc-32 of size 32 [ 19.007797] The buggy address is located 0 bytes to the right of [ 19.007797] allocated 24-byte region [fff00000c5908080, fff00000c5908098) [ 19.007928] [ 19.008003] The buggy address belongs to the physical page: [ 19.008101] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105908 [ 19.008172] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.008256] page_type: f5(slab) [ 19.008479] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 19.008677] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 19.008720] page dumped because: kasan: bad access detected [ 19.008754] [ 19.008775] Memory state around the buggy address: [ 19.008809] fff00000c5907f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.008863] fff00000c5908000: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 19.008936] >fff00000c5908080: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.008978] ^ [ 19.009016] fff00000c5908100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.009094] fff00000c5908180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.009146] ==================================================================
[ 14.292666] ================================================================== [ 14.294307] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 14.294889] Read of size 1 at addr ffff888103958098 by task kunit_try_catch/274 [ 14.295583] [ 14.295692] CPU: 0 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 14.295738] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.295984] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.296014] Call Trace: [ 14.296028] <TASK> [ 14.296090] dump_stack_lvl+0x73/0xb0 [ 14.296134] print_report+0xd1/0x650 [ 14.296159] ? __virt_addr_valid+0x1db/0x2d0 [ 14.296183] ? memcmp+0x1b4/0x1d0 [ 14.296200] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.296224] ? memcmp+0x1b4/0x1d0 [ 14.296242] kasan_report+0x141/0x180 [ 14.296264] ? memcmp+0x1b4/0x1d0 [ 14.296287] __asan_report_load1_noabort+0x18/0x20 [ 14.296312] memcmp+0x1b4/0x1d0 [ 14.296331] kasan_memcmp+0x18f/0x390 [ 14.296352] ? trace_hardirqs_on+0x37/0xe0 [ 14.296375] ? __pfx_kasan_memcmp+0x10/0x10 [ 14.296396] ? finish_task_switch.isra.0+0x153/0x700 [ 14.296418] ? __switch_to+0x47/0xf50 [ 14.296447] ? __pfx_read_tsc+0x10/0x10 [ 14.296468] ? ktime_get_ts64+0x86/0x230 [ 14.296492] kunit_try_run_case+0x1a5/0x480 [ 14.296517] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.296540] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.296563] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.296588] ? __kthread_parkme+0x82/0x180 [ 14.296609] ? preempt_count_sub+0x50/0x80 [ 14.296631] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.296656] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.296680] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.296705] kthread+0x337/0x6f0 [ 14.296724] ? trace_preempt_on+0x20/0xc0 [ 14.296745] ? __pfx_kthread+0x10/0x10 [ 14.296766] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.296787] ? calculate_sigpending+0x7b/0xa0 [ 14.296811] ? __pfx_kthread+0x10/0x10 [ 14.296832] ret_from_fork+0x116/0x1d0 [ 14.296850] ? __pfx_kthread+0x10/0x10 [ 14.296870] ret_from_fork_asm+0x1a/0x30 [ 14.296902] </TASK> [ 14.296912] [ 14.307443] Allocated by task 274: [ 14.307613] kasan_save_stack+0x45/0x70 [ 14.307878] kasan_save_track+0x18/0x40 [ 14.308205] kasan_save_alloc_info+0x3b/0x50 [ 14.308417] __kasan_kmalloc+0xb7/0xc0 [ 14.308605] __kmalloc_cache_noprof+0x189/0x420 [ 14.308788] kasan_memcmp+0xb7/0x390 [ 14.309068] kunit_try_run_case+0x1a5/0x480 [ 14.309246] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.309463] kthread+0x337/0x6f0 [ 14.309583] ret_from_fork+0x116/0x1d0 [ 14.309718] ret_from_fork_asm+0x1a/0x30 [ 14.309915] [ 14.310023] The buggy address belongs to the object at ffff888103958080 [ 14.310023] which belongs to the cache kmalloc-32 of size 32 [ 14.310568] The buggy address is located 0 bytes to the right of [ 14.310568] allocated 24-byte region [ffff888103958080, ffff888103958098) [ 14.311097] [ 14.311194] The buggy address belongs to the physical page: [ 14.311454] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103958 [ 14.311811] flags: 0x200000000000000(node=0|zone=2) [ 14.312034] page_type: f5(slab) [ 14.312304] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.312563] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 14.312891] page dumped because: kasan: bad access detected [ 14.313218] [ 14.313291] Memory state around the buggy address: [ 14.313447] ffff888103957f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.313727] ffff888103958000: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.314002] >ffff888103958080: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.314366] ^ [ 14.314554] ffff888103958100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.314849] ffff888103958180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.315273] ==================================================================