Date
July 15, 2025, 2:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 17.962809] ================================================================== [ 17.962904] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 17.962965] Write of size 16 at addr fff00000c59e4169 by task kunit_try_catch/180 [ 17.963015] [ 17.963045] CPU: 0 UID: 0 PID: 180 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT [ 17.963505] Tainted: [B]=BAD_PAGE, [N]=TEST [ 17.963549] Hardware name: linux,dummy-virt (DT) [ 17.963609] Call trace: [ 17.963634] show_stack+0x20/0x38 (C) [ 17.963786] dump_stack_lvl+0x8c/0xd0 [ 17.963838] print_report+0x118/0x5d0 [ 17.963881] kasan_report+0xdc/0x128 [ 17.964055] kasan_check_range+0x100/0x1a8 [ 17.964163] __asan_memset+0x34/0x78 [ 17.964238] kmalloc_oob_memset_16+0x150/0x2f8 [ 17.964287] kunit_try_run_case+0x170/0x3f0 [ 17.964738] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.964832] kthread+0x328/0x630 [ 17.964878] ret_from_fork+0x10/0x20 [ 17.965046] [ 17.965108] Allocated by task 180: [ 17.965155] kasan_save_stack+0x3c/0x68 [ 17.965509] kasan_save_track+0x20/0x40 [ 17.965632] kasan_save_alloc_info+0x40/0x58 [ 17.965737] __kasan_kmalloc+0xd4/0xd8 [ 17.965828] __kmalloc_cache_noprof+0x16c/0x3c0 [ 17.965975] kmalloc_oob_memset_16+0xb0/0x2f8 [ 17.966068] kunit_try_run_case+0x170/0x3f0 [ 17.966190] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 17.966248] kthread+0x328/0x630 [ 17.966283] ret_from_fork+0x10/0x20 [ 17.966324] [ 17.966503] The buggy address belongs to the object at fff00000c59e4100 [ 17.966503] which belongs to the cache kmalloc-128 of size 128 [ 17.966732] The buggy address is located 105 bytes inside of [ 17.966732] allocated 120-byte region [fff00000c59e4100, fff00000c59e4178) [ 17.966923] [ 17.966971] The buggy address belongs to the physical page: [ 17.967078] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1059e4 [ 17.967242] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 17.967294] page_type: f5(slab) [ 17.967539] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 17.967735] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 17.967786] page dumped because: kasan: bad access detected [ 17.967818] [ 17.967836] Memory state around the buggy address: [ 17.967868] fff00000c59e4000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 17.967911] fff00000c59e4080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.967953] >fff00000c59e4100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 17.967990] ^ [ 17.968032] fff00000c59e4180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.968074] fff00000c59e4200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 17.968112] ==================================================================
[ 11.162026] ================================================================== [ 11.163407] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 11.163759] Write of size 16 at addr ffff888102225b69 by task kunit_try_catch/197 [ 11.164241] [ 11.164357] CPU: 0 UID: 0 PID: 197 Comm: kunit_try_catch Tainted: G B N 6.15.7-rc1 #1 PREEMPT(voluntary) [ 11.164400] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.164411] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.164431] Call Trace: [ 11.164442] <TASK> [ 11.164456] dump_stack_lvl+0x73/0xb0 [ 11.164480] print_report+0xd1/0x610 [ 11.164502] ? __virt_addr_valid+0x1db/0x2d0 [ 11.164523] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.164544] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.164566] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.164587] kasan_report+0x141/0x180 [ 11.164609] ? kmalloc_oob_memset_16+0x166/0x330 [ 11.164636] kasan_check_range+0x10c/0x1c0 [ 11.164655] __asan_memset+0x27/0x50 [ 11.164675] kmalloc_oob_memset_16+0x166/0x330 [ 11.164697] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 11.164720] ? __schedule+0x10cc/0x2b60 [ 11.164743] ? __pfx_read_tsc+0x10/0x10 [ 11.164761] ? ktime_get_ts64+0x86/0x230 [ 11.164787] kunit_try_run_case+0x1a5/0x480 [ 11.164807] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.164825] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.164848] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.164871] ? __kthread_parkme+0x82/0x180 [ 11.164903] ? preempt_count_sub+0x50/0x80 [ 11.164927] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.164947] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.165025] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.165048] kthread+0x337/0x6f0 [ 11.165065] ? trace_preempt_on+0x20/0xc0 [ 11.165088] ? __pfx_kthread+0x10/0x10 [ 11.165105] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.165130] ? calculate_sigpending+0x7b/0xa0 [ 11.165150] ? __pfx_kthread+0x10/0x10 [ 11.165168] ret_from_fork+0x41/0x80 [ 11.165187] ? __pfx_kthread+0x10/0x10 [ 11.165204] ret_from_fork_asm+0x1a/0x30 [ 11.165235] </TASK> [ 11.165246] [ 11.174685] Allocated by task 197: [ 11.175069] kasan_save_stack+0x45/0x70 [ 11.175432] kasan_save_track+0x18/0x40 [ 11.175613] kasan_save_alloc_info+0x3b/0x50 [ 11.175894] __kasan_kmalloc+0xb7/0xc0 [ 11.176055] __kmalloc_cache_noprof+0x189/0x420 [ 11.176256] kmalloc_oob_memset_16+0xac/0x330 [ 11.176460] kunit_try_run_case+0x1a5/0x480 [ 11.176645] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.177289] kthread+0x337/0x6f0 [ 11.177422] ret_from_fork+0x41/0x80 [ 11.177682] ret_from_fork_asm+0x1a/0x30 [ 11.178184] [ 11.178265] The buggy address belongs to the object at ffff888102225b00 [ 11.178265] which belongs to the cache kmalloc-128 of size 128 [ 11.178983] The buggy address is located 105 bytes inside of [ 11.178983] allocated 120-byte region [ffff888102225b00, ffff888102225b78) [ 11.179457] [ 11.179552] The buggy address belongs to the physical page: [ 11.179786] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102225 [ 11.180131] flags: 0x200000000000000(node=0|zone=2) [ 11.180351] page_type: f5(slab) [ 11.180515] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.181294] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.181585] page dumped because: kasan: bad access detected [ 11.182137] [ 11.182225] Memory state around the buggy address: [ 11.182556] ffff888102225a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.182985] ffff888102225a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.183409] >ffff888102225b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.183765] ^ [ 11.184344] ffff888102225b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.184822] ffff888102225c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.185256] ==================================================================