Date
June 16, 2025, 7:07 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 22.215674] ================================================================== [ 22.216170] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 22.216293] Read of size 1 at addr fff00000c63fb198 by task kunit_try_catch/266 [ 22.216614] [ 22.216686] CPU: 0 UID: 0 PID: 266 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT [ 22.217070] Tainted: [B]=BAD_PAGE, [N]=TEST [ 22.217128] Hardware name: linux,dummy-virt (DT) [ 22.217302] Call trace: [ 22.217345] show_stack+0x20/0x38 (C) [ 22.217457] dump_stack_lvl+0x8c/0xd0 [ 22.217678] print_report+0x118/0x608 [ 22.217941] kasan_report+0xdc/0x128 [ 22.218134] __asan_report_load1_noabort+0x20/0x30 [ 22.218215] memcmp+0x198/0x1d8 [ 22.218276] kasan_memcmp+0x16c/0x300 [ 22.218384] kunit_try_run_case+0x170/0x3f0 [ 22.218468] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.218714] kthread+0x328/0x630 [ 22.218798] ret_from_fork+0x10/0x20 [ 22.219204] [ 22.219241] Allocated by task 266: [ 22.219427] kasan_save_stack+0x3c/0x68 [ 22.219498] kasan_save_track+0x20/0x40 [ 22.219711] kasan_save_alloc_info+0x40/0x58 [ 22.219896] __kasan_kmalloc+0xd4/0xd8 [ 22.219959] __kmalloc_cache_noprof+0x16c/0x3c0 [ 22.220018] kasan_memcmp+0xbc/0x300 [ 22.220063] kunit_try_run_case+0x170/0x3f0 [ 22.220108] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 22.220160] kthread+0x328/0x630 [ 22.220199] ret_from_fork+0x10/0x20 [ 22.220266] [ 22.220299] The buggy address belongs to the object at fff00000c63fb180 [ 22.220299] which belongs to the cache kmalloc-32 of size 32 [ 22.220392] The buggy address is located 0 bytes to the right of [ 22.220392] allocated 24-byte region [fff00000c63fb180, fff00000c63fb198) [ 22.220476] [ 22.220508] The buggy address belongs to the physical page: [ 22.220554] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063fb [ 22.220624] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 22.220693] page_type: f5(slab) [ 22.220750] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 22.221085] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 22.221481] page dumped because: kasan: bad access detected [ 22.221556] [ 22.221586] Memory state around the buggy address: [ 22.221873] fff00000c63fb080: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 22.222013] fff00000c63fb100: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 22.222082] >fff00000c63fb180: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.222157] ^ [ 22.222373] fff00000c63fb200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.222620] fff00000c63fb280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 22.222844] ==================================================================
[ 13.383756] ================================================================== [ 13.384919] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 13.385609] Read of size 1 at addr ffff888102a33e58 by task kunit_try_catch/282 [ 13.386362] [ 13.386602] CPU: 0 UID: 0 PID: 282 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250616 #1 PREEMPT(voluntary) [ 13.386654] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.386666] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.386687] Call Trace: [ 13.386700] <TASK> [ 13.386719] dump_stack_lvl+0x73/0xb0 [ 13.386748] print_report+0xd1/0x650 [ 13.386773] ? __virt_addr_valid+0x1db/0x2d0 [ 13.386796] ? memcmp+0x1b4/0x1d0 [ 13.386816] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.386839] ? memcmp+0x1b4/0x1d0 [ 13.386859] kasan_report+0x141/0x180 [ 13.386880] ? memcmp+0x1b4/0x1d0 [ 13.386905] __asan_report_load1_noabort+0x18/0x20 [ 13.386939] memcmp+0x1b4/0x1d0 [ 13.386962] kasan_memcmp+0x18f/0x390 [ 13.386984] ? __pfx_kasan_memcmp+0x10/0x10 [ 13.387004] ? sysvec_apic_timer_interrupt+0x50/0x90 [ 13.387032] ? __pfx_kasan_memcmp+0x10/0x10 [ 13.387056] kunit_try_run_case+0x1a5/0x480 [ 13.387080] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.387101] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.387123] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.387144] ? __kthread_parkme+0x82/0x180 [ 13.387167] ? preempt_count_sub+0x50/0x80 [ 13.387190] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.387212] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.387234] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.387257] kthread+0x337/0x6f0 [ 13.387276] ? trace_preempt_on+0x20/0xc0 [ 13.387301] ? __pfx_kthread+0x10/0x10 [ 13.387321] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.387341] ? calculate_sigpending+0x7b/0xa0 [ 13.387365] ? __pfx_kthread+0x10/0x10 [ 13.387429] ret_from_fork+0x116/0x1d0 [ 13.387450] ? __pfx_kthread+0x10/0x10 [ 13.387470] ret_from_fork_asm+0x1a/0x30 [ 13.387501] </TASK> [ 13.387513] [ 13.398973] Allocated by task 282: [ 13.399177] kasan_save_stack+0x45/0x70 [ 13.399320] kasan_save_track+0x18/0x40 [ 13.399686] kasan_save_alloc_info+0x3b/0x50 [ 13.400094] __kasan_kmalloc+0xb7/0xc0 [ 13.400682] __kmalloc_cache_noprof+0x189/0x420 [ 13.400987] kasan_memcmp+0xb7/0x390 [ 13.401114] kunit_try_run_case+0x1a5/0x480 [ 13.401252] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.401623] kthread+0x337/0x6f0 [ 13.401948] ret_from_fork+0x116/0x1d0 [ 13.402293] ret_from_fork_asm+0x1a/0x30 [ 13.402748] [ 13.402904] The buggy address belongs to the object at ffff888102a33e40 [ 13.402904] which belongs to the cache kmalloc-32 of size 32 [ 13.403750] The buggy address is located 0 bytes to the right of [ 13.403750] allocated 24-byte region [ffff888102a33e40, ffff888102a33e58) [ 13.404674] [ 13.404748] The buggy address belongs to the physical page: [ 13.404914] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a33 [ 13.405158] flags: 0x200000000000000(node=0|zone=2) [ 13.405314] page_type: f5(slab) [ 13.405623] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 13.406536] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 13.407200] page dumped because: kasan: bad access detected [ 13.407733] [ 13.407886] Memory state around the buggy address: [ 13.408322] ffff888102a33d00: fa fb fb fb fc fc fc fc 00 00 07 fc fc fc fc fc [ 13.409005] ffff888102a33d80: 00 00 00 fc fc fc fc fc 00 00 00 04 fc fc fc fc [ 13.409512] >ffff888102a33e00: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 13.409855] ^ [ 13.410290] ffff888102a33e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.410866] ffff888102a33f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.411365] ==================================================================