Date
July 20, 2025, 8:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.625623] ================================================================== [ 15.625740] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x344/0x430 [ 15.625801] Read of size 1 at addr fff00000c77040c8 by task kunit_try_catch/208 [ 15.625853] [ 15.625889] CPU: 1 UID: 0 PID: 208 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.625991] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.626038] Hardware name: linux,dummy-virt (DT) [ 15.626099] Call trace: [ 15.626124] show_stack+0x20/0x38 (C) [ 15.626223] dump_stack_lvl+0x8c/0xd0 [ 15.626284] print_report+0x118/0x5d0 [ 15.626349] kasan_report+0xdc/0x128 [ 15.626402] __asan_report_load1_noabort+0x20/0x30 [ 15.626456] kmem_cache_oob+0x344/0x430 [ 15.626501] kunit_try_run_case+0x170/0x3f0 [ 15.626548] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.626739] kthread+0x328/0x630 [ 15.626854] ret_from_fork+0x10/0x20 [ 15.626936] [ 15.626975] Allocated by task 208: [ 15.627022] kasan_save_stack+0x3c/0x68 [ 15.627065] kasan_save_track+0x20/0x40 [ 15.627101] kasan_save_alloc_info+0x40/0x58 [ 15.627167] __kasan_slab_alloc+0xa8/0xb0 [ 15.627235] kmem_cache_alloc_noprof+0x10c/0x398 [ 15.627291] kmem_cache_oob+0x12c/0x430 [ 15.627334] kunit_try_run_case+0x170/0x3f0 [ 15.627371] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.627414] kthread+0x328/0x630 [ 15.627464] ret_from_fork+0x10/0x20 [ 15.627527] [ 15.627593] The buggy address belongs to the object at fff00000c7704000 [ 15.627593] which belongs to the cache test_cache of size 200 [ 15.627660] The buggy address is located 0 bytes to the right of [ 15.627660] allocated 200-byte region [fff00000c7704000, fff00000c77040c8) [ 15.627735] [ 15.627772] The buggy address belongs to the physical page: [ 15.628043] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107704 [ 15.628123] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.628237] page_type: f5(slab) [ 15.628306] raw: 0bfffe0000000000 fff00000c5bc03c0 dead000000000122 0000000000000000 [ 15.628359] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 15.628432] page dumped because: kasan: bad access detected [ 15.628473] [ 15.628512] Memory state around the buggy address: [ 15.628546] fff00000c7703f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 15.628589] fff00000c7704000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 15.628633] >fff00000c7704080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 15.628692] ^ [ 15.628739] fff00000c7704100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.628784] fff00000c7704180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.628837] ==================================================================
[ 13.595447] ================================================================== [ 13.595959] BUG: KASAN: slab-out-of-bounds in kmem_cache_oob+0x402/0x530 [ 13.596426] Read of size 1 at addr ffff8881038a60c8 by task kunit_try_catch/225 [ 13.596806] [ 13.596934] CPU: 1 UID: 0 PID: 225 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 13.596985] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.596997] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.597020] Call Trace: [ 13.597071] <TASK> [ 13.597093] dump_stack_lvl+0x73/0xb0 [ 13.597127] print_report+0xd1/0x610 [ 13.597178] ? __virt_addr_valid+0x1db/0x2d0 [ 13.597203] ? kmem_cache_oob+0x402/0x530 [ 13.597226] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.597249] ? kmem_cache_oob+0x402/0x530 [ 13.597273] kasan_report+0x141/0x180 [ 13.597295] ? kmem_cache_oob+0x402/0x530 [ 13.597341] __asan_report_load1_noabort+0x18/0x20 [ 13.597366] kmem_cache_oob+0x402/0x530 [ 13.597389] ? trace_hardirqs_on+0x37/0xe0 [ 13.597413] ? __pfx_kmem_cache_oob+0x10/0x10 [ 13.597436] ? finish_task_switch.isra.0+0x153/0x700 [ 13.597460] ? __switch_to+0x47/0xf50 [ 13.597501] ? __pfx_read_tsc+0x10/0x10 [ 13.597523] ? ktime_get_ts64+0x86/0x230 [ 13.597549] kunit_try_run_case+0x1a5/0x480 [ 13.597574] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.597616] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.597642] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.597665] ? __kthread_parkme+0x82/0x180 [ 13.597702] ? preempt_count_sub+0x50/0x80 [ 13.597725] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.597749] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.597773] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.597807] kthread+0x337/0x6f0 [ 13.597827] ? trace_preempt_on+0x20/0xc0 [ 13.597849] ? __pfx_kthread+0x10/0x10 [ 13.597871] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.597892] ? calculate_sigpending+0x7b/0xa0 [ 13.597917] ? __pfx_kthread+0x10/0x10 [ 13.597939] ret_from_fork+0x116/0x1d0 [ 13.597957] ? __pfx_kthread+0x10/0x10 [ 13.597978] ret_from_fork_asm+0x1a/0x30 [ 13.598008] </TASK> [ 13.598018] [ 13.606466] Allocated by task 225: [ 13.606673] kasan_save_stack+0x45/0x70 [ 13.606928] kasan_save_track+0x18/0x40 [ 13.607300] kasan_save_alloc_info+0x3b/0x50 [ 13.607565] __kasan_slab_alloc+0x91/0xa0 [ 13.607714] kmem_cache_alloc_noprof+0x123/0x3f0 [ 13.608156] kmem_cache_oob+0x157/0x530 [ 13.608556] kunit_try_run_case+0x1a5/0x480 [ 13.608783] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.609051] kthread+0x337/0x6f0 [ 13.609275] ret_from_fork+0x116/0x1d0 [ 13.609453] ret_from_fork_asm+0x1a/0x30 [ 13.609691] [ 13.609792] The buggy address belongs to the object at ffff8881038a6000 [ 13.609792] which belongs to the cache test_cache of size 200 [ 13.610377] The buggy address is located 0 bytes to the right of [ 13.610377] allocated 200-byte region [ffff8881038a6000, ffff8881038a60c8) [ 13.610959] [ 13.611060] The buggy address belongs to the physical page: [ 13.611334] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1038a6 [ 13.611700] flags: 0x200000000000000(node=0|zone=2) [ 13.611939] page_type: f5(slab) [ 13.612091] raw: 0200000000000000 ffff888100fc9b40 dead000000000122 0000000000000000 [ 13.612322] raw: 0000000000000000 00000000800f000f 00000000f5000000 0000000000000000 [ 13.612793] page dumped because: kasan: bad access detected [ 13.613088] [ 13.613210] Memory state around the buggy address: [ 13.613445] ffff8881038a5f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.613882] ffff8881038a6000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 13.614346] >ffff8881038a6080: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc [ 13.614642] ^ [ 13.615113] ffff8881038a6100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.615431] ffff8881038a6180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.615782] ==================================================================