Date
July 22, 2025, 2:40 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.208675] ================================================================== [ 17.208766] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x144/0x2d0 [ 17.208838] Write of size 128 at addr fff00000c6fb0300 by task kunit_try_catch/172 [ 17.209131] [ 17.209180] CPU: 0 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT [ 17.209263] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.209298] Hardware name: linux,dummy-virt (DT) [ 17.209661] Call trace: [ 17.209752] show_stack+0x20/0x38 (C) [ 17.209816] dump_stack_lvl+0x8c/0xd0 [ 17.209917] print_report+0x118/0x5d0 [ 17.209983] kasan_report+0xdc/0x128 [ 17.210027] kasan_check_range+0x100/0x1a8 [ 17.210421] __asan_memset+0x34/0x78 [ 17.210498] kmalloc_oob_in_memset+0x144/0x2d0 [ 17.210607] kunit_try_run_case+0x170/0x3f0 [ 17.210704] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.210783] kthread+0x328/0x630 [ 17.210921] ret_from_fork+0x10/0x20 [ 17.211027] [ 17.211201] Allocated by task 172: [ 17.211237] kasan_save_stack+0x3c/0x68 [ 17.211293] kasan_save_track+0x20/0x40 [ 17.211329] kasan_save_alloc_info+0x40/0x58 [ 17.211563] __kasan_kmalloc+0xd4/0xd8 [ 17.211672] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.211750] kmalloc_oob_in_memset+0xb0/0x2d0 [ 17.211880] kunit_try_run_case+0x170/0x3f0 [ 17.211981] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.212121] kthread+0x328/0x630 [ 17.212201] ret_from_fork+0x10/0x20 [ 17.212264] [ 17.212293] The buggy address belongs to the object at fff00000c6fb0300 [ 17.212293] which belongs to the cache kmalloc-128 of size 128 [ 17.212737] The buggy address is located 0 bytes inside of [ 17.212737] allocated 120-byte region [fff00000c6fb0300, fff00000c6fb0378) [ 17.212884] [ 17.212943] The buggy address belongs to the physical page: [ 17.212991] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106fb0 [ 17.213110] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.213187] page_type: f5(slab) [ 17.213234] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.213617] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.213770] page dumped because: kasan: bad access detected [ 17.213849] [ 17.213944] Memory state around the buggy address: [ 17.214049] fff00000c6fb0200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.214113] fff00000c6fb0280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.214325] >fff00000c6fb0300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.214470] ^ [ 17.214621] fff00000c6fb0380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.214749] fff00000c6fb0400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.214914] ==================================================================
[ 11.145730] ================================================================== [ 11.146140] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x15f/0x320 [ 11.146416] Write of size 128 at addr ffff8881028aff00 by task kunit_try_catch/190 [ 11.146712] [ 11.146934] CPU: 1 UID: 0 PID: 190 Comm: kunit_try_catch Tainted: G B N 6.15.8-rc1 #1 PREEMPT(voluntary) [ 11.146984] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.146995] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.147016] Call Trace: [ 11.147028] <TASK> [ 11.147084] dump_stack_lvl+0x73/0xb0 [ 11.147111] print_report+0xd1/0x610 [ 11.147133] ? __virt_addr_valid+0x1db/0x2d0 [ 11.147155] ? kmalloc_oob_in_memset+0x15f/0x320 [ 11.147176] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.147198] ? kmalloc_oob_in_memset+0x15f/0x320 [ 11.147268] kasan_report+0x141/0x180 [ 11.147289] ? kmalloc_oob_in_memset+0x15f/0x320 [ 11.147316] kasan_check_range+0x10c/0x1c0 [ 11.147335] __asan_memset+0x27/0x50 [ 11.147354] kmalloc_oob_in_memset+0x15f/0x320 [ 11.147389] ? __pfx_kmalloc_oob_in_memset+0x10/0x10 [ 11.147411] ? __schedule+0x10c6/0x2b60 [ 11.147434] ? __pfx_read_tsc+0x10/0x10 [ 11.147453] ? ktime_get_ts64+0x86/0x230 [ 11.147502] kunit_try_run_case+0x1a5/0x480 [ 11.147523] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.147541] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.147561] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.147584] ? __kthread_parkme+0x82/0x180 [ 11.147605] ? preempt_count_sub+0x50/0x80 [ 11.147629] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.147648] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.147670] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.147726] kthread+0x337/0x6f0 [ 11.147743] ? trace_preempt_on+0x20/0xc0 [ 11.147766] ? __pfx_kthread+0x10/0x10 [ 11.147783] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.147804] ? calculate_sigpending+0x7b/0xa0 [ 11.147825] ? __pfx_kthread+0x10/0x10 [ 11.147843] ret_from_fork+0x41/0x80 [ 11.147862] ? __pfx_kthread+0x10/0x10 [ 11.147879] ret_from_fork_asm+0x1a/0x30 [ 11.147910] </TASK> [ 11.147920] [ 11.161278] Allocated by task 190: [ 11.161532] kasan_save_stack+0x45/0x70 [ 11.161885] kasan_save_track+0x18/0x40 [ 11.162284] kasan_save_alloc_info+0x3b/0x50 [ 11.162896] __kasan_kmalloc+0xb7/0xc0 [ 11.163308] __kmalloc_cache_noprof+0x189/0x420 [ 11.163745] kmalloc_oob_in_memset+0xac/0x320 [ 11.164186] kunit_try_run_case+0x1a5/0x480 [ 11.164578] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.164919] kthread+0x337/0x6f0 [ 11.165043] ret_from_fork+0x41/0x80 [ 11.165173] ret_from_fork_asm+0x1a/0x30 [ 11.165325] [ 11.165427] The buggy address belongs to the object at ffff8881028aff00 [ 11.165427] which belongs to the cache kmalloc-128 of size 128 [ 11.166109] The buggy address is located 0 bytes inside of [ 11.166109] allocated 120-byte region [ffff8881028aff00, ffff8881028aff78) [ 11.166602] [ 11.166756] The buggy address belongs to the physical page: [ 11.166970] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1028af [ 11.167272] flags: 0x200000000000000(node=0|zone=2) [ 11.167512] page_type: f5(slab) [ 11.167847] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.168164] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.168516] page dumped because: kasan: bad access detected [ 11.168806] [ 11.168902] Memory state around the buggy address: [ 11.169099] ffff8881028afe00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.169335] ffff8881028afe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.169649] >ffff8881028aff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.169958] ^ [ 11.170200] ffff8881028aff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.170721] ffff8881028b0000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.170987] ==================================================================