Date
July 4, 2025, 11:10 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.964986] ================================================================== [ 29.965048] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x344/0x430 [ 29.965173] Read of size 1 at addr fff00000c9b130c8 by task kunit_try_catch/240 [ 29.965242] [ 29.965707] CPU: 0 UID: 0 PID: 240 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT [ 29.965908] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.965977] Hardware name: linux,dummy-virt (DT) [ 29.966165] Call trace: [ 29.966191] show_stack+0x20/0x38 (C) [ 29.966256] dump_stack_lvl+0x8c/0xd0 [ 29.966835] print_report+0x118/0x608 [ 29.966975] kasan_report+0xdc/0x128 [ 29.967135] __asan_report_load1_noabort+0x20/0x30 [ 29.967302] kmem_cache_oob+0x344/0x430 [ 29.967448] kunit_try_run_case+0x170/0x3f0 [ 29.967817] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.967931] kthread+0x328/0x630 [ 29.968126] ret_from_fork+0x10/0x20 [ 29.968396] [ 29.968417] Allocated by task 240: [ 29.968705] kasan_save_stack+0x3c/0x68 [ 29.968776] kasan_save_track+0x20/0x40 [ 29.969015] kasan_save_alloc_info+0x40/0x58 [ 29.969126] __kasan_slab_alloc+0xa8/0xb0 [ 29.969243] kmem_cache_alloc_noprof+0x10c/0x398 [ 29.969318] kmem_cache_oob+0x12c/0x430 [ 29.969639] kunit_try_run_case+0x170/0x3f0 [ 29.969786] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.969834] kthread+0x328/0x630 [ 29.969868] ret_from_fork+0x10/0x20 [ 29.969950] [ 29.970248] The buggy address belongs to the object at fff00000c9b13000 [ 29.970248] which belongs to the cache test_cache of size 200 [ 29.970432] The buggy address is located 0 bytes to the right of [ 29.970432] allocated 200-byte region [fff00000c9b13000, fff00000c9b130c8) [ 29.970676] [ 29.970713] The buggy address belongs to the physical page: [ 29.970908] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x109b13 [ 29.971272] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.971354] page_type: f5(slab) [ 29.971460] raw: 0bfffe0000000000 fff00000c45b3640 dead000000000122 0000000000000000 [ 29.971613] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 29.971982] page dumped because: kasan: bad access detected [ 29.972168] [ 29.972251] Memory state around the buggy address: [ 29.972401] fff00000c9b12f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 29.972503] fff00000c9b13000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.972555] >fff00000c9b13080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 29.972660] ^ [ 29.972698] fff00000c9b13100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.972754] fff00000c9b13180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.972806] ==================================================================
[ 25.620406] ================================================================== [ 25.620928] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x402/0x530 [ 25.621174] Read of size 1 at addr ffff888105ab60c8 by task kunit_try_catch/256 [ 25.621413] [ 25.621509] CPU: 0 UID: 0 PID: 256 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4-next-20250704 #1 PREEMPT(voluntary) [ 25.621565] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.621578] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.621603] Call Trace: [ 25.621617] <TASK> [ 25.621640] dump_stack_lvl+0x73/0xb0 [ 25.621670] print_report+0xd1/0x650 [ 25.621693] ? __virt_addr_valid+0x1db/0x2d0 [ 25.621719] ? kmem_cache_oob+0x402/0x530 [ 25.621742] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.621769] ? kmem_cache_oob+0x402/0x530 [ 25.621792] kasan_report+0x141/0x180 [ 25.621814] ? kmem_cache_oob+0x402/0x530 [ 25.621842] __asan_report_load1_noabort+0x18/0x20 [ 25.621866] kmem_cache_oob+0x402/0x530 [ 25.621887] ? trace_hardirqs_on+0x37/0xe0 [ 25.621914] ? __pfx_kmem_cache_oob+0x10/0x10 [ 25.621936] ? finish_task_switch.isra.0+0x153/0x700 [ 25.621960] ? __switch_to+0x47/0xf50 [ 25.621991] ? __pfx_read_tsc+0x10/0x10 [ 25.622014] ? ktime_get_ts64+0x86/0x230 [ 25.622041] kunit_try_run_case+0x1a5/0x480 [ 25.622069] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.622094] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.622120] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.622145] ? __kthread_parkme+0x82/0x180 [ 25.622166] ? preempt_count_sub+0x50/0x80 [ 25.622190] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.622216] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.622242] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.622267] kthread+0x337/0x6f0 [ 25.622287] ? trace_preempt_on+0x20/0xc0 [ 25.622310] ? __pfx_kthread+0x10/0x10 [ 25.622331] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.622354] ? calculate_sigpending+0x7b/0xa0 [ 25.622380] ? __pfx_kthread+0x10/0x10 [ 25.622790] ret_from_fork+0x116/0x1d0 [ 25.622815] ? __pfx_kthread+0x10/0x10 [ 25.622839] ret_from_fork_asm+0x1a/0x30 [ 25.623102] </TASK> [ 25.623123] [ 25.636559] Allocated by task 256: [ 25.636761] kasan_save_stack+0x45/0x70 [ 25.637007] kasan_save_track+0x18/0x40 [ 25.637673] kasan_save_alloc_info+0x3b/0x50 [ 25.638041] __kasan_slab_alloc+0x91/0xa0 [ 25.638429] kmem_cache_alloc_noprof+0x123/0x3f0 [ 25.638788] kmem_cache_oob+0x157/0x530 [ 25.639269] kunit_try_run_case+0x1a5/0x480 [ 25.639633] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.640008] kthread+0x337/0x6f0 [ 25.640496] ret_from_fork+0x116/0x1d0 [ 25.640708] ret_from_fork_asm+0x1a/0x30 [ 25.640998] [ 25.641098] The buggy address belongs to the object at ffff888105ab6000 [ 25.641098] which belongs to the cache test_cache of size 200 [ 25.641808] The buggy address is located 0 bytes to the right of [ 25.641808] allocated 200-byte region [ffff888105ab6000, ffff888105ab60c8) [ 25.642427] [ 25.642594] The buggy address belongs to the physical page: [ 25.642844] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105ab6 [ 25.643539] flags: 0x200000000000000(node=0|zone=2) [ 25.643764] page_type: f5(slab) [ 25.644016] raw: 0200000000000000 ffff888101d9e140 dead000000000122 0000000000000000 [ 25.644531] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 25.644882] page dumped because: kasan: bad access detected [ 25.645485] [ 25.645577] Memory state around the buggy address: [ 25.645960] ffff888105ab5f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.646403] ffff888105ab6000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.646856] >ffff888105ab6080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 25.647310] ^ [ 25.647812] ffff888105ab6100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.648241] ffff888105ab6180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.648506] ==================================================================