Date
July 15, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.723959] ================================================================== [ 17.724055] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 17.724115] Read of size 1 at addr fff00000c5977958 by task kunit_try_catch/258 [ 17.724169] [ 17.724254] CPU: 1 UID: 0 PID: 258 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 17.724477] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.724515] Hardware name: linux,dummy-virt (DT) [ 17.724576] Call trace: [ 17.724603] show_stack+0x20/0x38 (C) [ 17.724668] dump_stack_lvl+0x8c/0xd0 [ 17.724718] print_report+0x118/0x5d0 [ 17.724783] kasan_report+0xdc/0x128 [ 17.724831] __asan_report_load1_noabort+0x20/0x30 [ 17.725106] memcmp+0x198/0x1d8 [ 17.725174] kasan_memcmp+0x16c/0x300 [ 17.725259] kunit_try_run_case+0x170/0x3f0 [ 17.725373] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.725430] kthread+0x328/0x630 [ 17.725475] ret_from_fork+0x10/0x20 [ 17.725524] [ 17.725546] Allocated by task 258: [ 17.725576] kasan_save_stack+0x3c/0x68 [ 17.725620] kasan_save_track+0x20/0x40 [ 17.725659] kasan_save_alloc_info+0x40/0x58 [ 17.725701] __kasan_kmalloc+0xd4/0xd8 [ 17.725739] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.726619] kasan_memcmp+0xbc/0x300 [ 17.727557] kunit_try_run_case+0x170/0x3f0 [ 17.728223] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.729481] kthread+0x328/0x630 [ 17.729531] ret_from_fork+0x10/0x20 [ 17.730812] [ 17.731326] The buggy address belongs to the object at fff00000c5977940 [ 17.731326] which belongs to the cache kmalloc-32 of size 32 [ 17.731412] The buggy address is located 0 bytes to the right of [ 17.731412] allocated 24-byte region [fff00000c5977940, fff00000c5977958) [ 17.731483] [ 17.732217] The buggy address belongs to the physical page: [ 17.732260] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105977 [ 17.732887] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.734931] page_type: f5(slab) [ 17.735548] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 17.735610] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 17.735655] page dumped because: kasan: bad access detected [ 17.735689] [ 17.735709] Memory state around the buggy address: [ 17.735745] fff00000c5977800: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 17.735791] fff00000c5977880: 00 00 00 04 fc fc fc fc 00 00 07 fc fc fc fc fc [ 17.735836] >fff00000c5977900: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 17.735954] ^ [ 17.736110] fff00000c5977980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.736171] fff00000c5977a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.736608] ==================================================================
[ 14.409455] ================================================================== [ 14.410131] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 14.410894] Read of size 1 at addr ffff8881032dead8 by task kunit_try_catch/274 [ 14.411218] [ 14.411331] CPU: 0 UID: 0 PID: 274 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 14.411698] Tainted: [B]=BAD_PAGE, [N]=TEST [ 14.411711] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 14.411733] Call Trace: [ 14.411746] <TASK> [ 14.411777] dump_stack_lvl+0x73/0xb0 [ 14.411808] print_report+0xd1/0x610 [ 14.411835] ? __virt_addr_valid+0x1db/0x2d0 [ 14.411860] ? memcmp+0x1b4/0x1d0 [ 14.411877] ? kasan_complete_mode_report_info+0x2a/0x200 [ 14.411902] ? memcmp+0x1b4/0x1d0 [ 14.411919] kasan_report+0x141/0x180 [ 14.411941] ? memcmp+0x1b4/0x1d0 [ 14.411963] __asan_report_load1_noabort+0x18/0x20 [ 14.411989] memcmp+0x1b4/0x1d0 [ 14.412009] kasan_memcmp+0x18f/0x390 [ 14.412028] ? trace_hardirqs_on+0x37/0xe0 [ 14.412053] ? __pfx_kasan_memcmp+0x10/0x10 [ 14.412074] ? finish_task_switch.isra.0+0x153/0x700 [ 14.412099] ? __switch_to+0x47/0xf50 [ 14.412128] ? __pfx_read_tsc+0x10/0x10 [ 14.412150] ? ktime_get_ts64+0x86/0x230 [ 14.412175] kunit_try_run_case+0x1a5/0x480 [ 14.412201] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.412225] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 14.412251] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 14.412276] ? __kthread_parkme+0x82/0x180 [ 14.412297] ? preempt_count_sub+0x50/0x80 [ 14.412321] ? __pfx_kunit_try_run_case+0x10/0x10 [ 14.412383] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.412410] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 14.412437] kthread+0x337/0x6f0 [ 14.412456] ? trace_preempt_on+0x20/0xc0 [ 14.412479] ? __pfx_kthread+0x10/0x10 [ 14.412500] ? _raw_spin_unlock_irq+0x47/0x80 [ 14.412522] ? calculate_sigpending+0x7b/0xa0 [ 14.412548] ? __pfx_kthread+0x10/0x10 [ 14.412569] ret_from_fork+0x116/0x1d0 [ 14.412589] ? __pfx_kthread+0x10/0x10 [ 14.412610] ret_from_fork_asm+0x1a/0x30 [ 14.412642] </TASK> [ 14.412651] [ 14.423254] Allocated by task 274: [ 14.423448] kasan_save_stack+0x45/0x70 [ 14.423772] kasan_save_track+0x18/0x40 [ 14.423929] kasan_save_alloc_info+0x3b/0x50 [ 14.424109] __kasan_kmalloc+0xb7/0xc0 [ 14.424301] __kmalloc_cache_noprof+0x189/0x420 [ 14.424664] kasan_memcmp+0xb7/0x390 [ 14.424845] kunit_try_run_case+0x1a5/0x480 [ 14.425024] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 14.425286] kthread+0x337/0x6f0 [ 14.425633] ret_from_fork+0x116/0x1d0 [ 14.425814] ret_from_fork_asm+0x1a/0x30 [ 14.426018] [ 14.426115] The buggy address belongs to the object at ffff8881032deac0 [ 14.426115] which belongs to the cache kmalloc-32 of size 32 [ 14.426679] The buggy address is located 0 bytes to the right of [ 14.426679] allocated 24-byte region [ffff8881032deac0, ffff8881032dead8) [ 14.427114] [ 14.427189] The buggy address belongs to the physical page: [ 14.427380] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1032de [ 14.427872] flags: 0x200000000000000(node=0|zone=2) [ 14.428243] page_type: f5(slab) [ 14.428468] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 14.428771] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 14.429050] page dumped because: kasan: bad access detected [ 14.429222] [ 14.429319] Memory state around the buggy address: [ 14.429697] ffff8881032de980: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 14.430037] ffff8881032dea00: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 14.430424] >ffff8881032dea80: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 14.430701] ^ [ 14.430956] ffff8881032deb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.431255] ffff8881032deb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 14.431474] ==================================================================