Date
July 8, 2025, 7:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.300475] ================================================================== [ 19.300925] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 19.300987] Write of size 2 at addr fff00000c1d5fe77 by task kunit_try_catch/172 [ 19.301447] [ 19.301539] CPU: 1 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 19.301765] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.301845] Hardware name: linux,dummy-virt (DT) [ 19.301883] Call trace: [ 19.301931] show_stack+0x20/0x38 (C) [ 19.302037] dump_stack_lvl+0x8c/0xd0 [ 19.302093] print_report+0x118/0x608 [ 19.302137] kasan_report+0xdc/0x128 [ 19.302407] kasan_check_range+0x100/0x1a8 [ 19.302553] __asan_memset+0x34/0x78 [ 19.302757] kmalloc_oob_memset_2+0x150/0x2f8 [ 19.302819] kunit_try_run_case+0x170/0x3f0 [ 19.302864] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.303211] kthread+0x328/0x630 [ 19.303273] ret_from_fork+0x10/0x20 [ 19.303495] [ 19.303803] Allocated by task 172: [ 19.303838] kasan_save_stack+0x3c/0x68 [ 19.303907] kasan_save_track+0x20/0x40 [ 19.303952] kasan_save_alloc_info+0x40/0x58 [ 19.303990] __kasan_kmalloc+0xd4/0xd8 [ 19.304025] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.304063] kmalloc_oob_memset_2+0xb0/0x2f8 [ 19.304466] kunit_try_run_case+0x170/0x3f0 [ 19.304608] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.304855] kthread+0x328/0x630 [ 19.304985] ret_from_fork+0x10/0x20 [ 19.305220] [ 19.305352] The buggy address belongs to the object at fff00000c1d5fe00 [ 19.305352] which belongs to the cache kmalloc-128 of size 128 [ 19.305554] The buggy address is located 119 bytes inside of [ 19.305554] allocated 120-byte region [fff00000c1d5fe00, fff00000c1d5fe78) [ 19.305885] [ 19.305912] The buggy address belongs to the physical page: [ 19.305942] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101d5f [ 19.306121] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.306285] page_type: f5(slab) [ 19.306574] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.306822] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.307155] page dumped because: kasan: bad access detected [ 19.307219] [ 19.307255] Memory state around the buggy address: [ 19.307704] fff00000c1d5fd00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.307788] fff00000c1d5fd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.308011] >fff00000c1d5fe00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.308140] ^ [ 19.308200] fff00000c1d5fe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.308246] fff00000c1d5ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.308379] ==================================================================
[ 12.972405] ================================================================== [ 12.973787] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 12.974994] Write of size 2 at addr ffff888102af6277 by task kunit_try_catch/189 [ 12.975759] [ 12.976160] CPU: 0 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.976210] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.976388] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.976448] Call Trace: [ 12.976473] <TASK> [ 12.976497] dump_stack_lvl+0x73/0xb0 [ 12.976544] print_report+0xd1/0x650 [ 12.976567] ? __virt_addr_valid+0x1db/0x2d0 [ 12.976592] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.976614] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.976640] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.976662] kasan_report+0x141/0x180 [ 12.976682] ? kmalloc_oob_memset_2+0x166/0x330 [ 12.976708] kasan_check_range+0x10c/0x1c0 [ 12.976730] __asan_memset+0x27/0x50 [ 12.976749] kmalloc_oob_memset_2+0x166/0x330 [ 12.976770] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 12.976792] ? __schedule+0x10cc/0x2b60 [ 12.976813] ? __pfx_read_tsc+0x10/0x10 [ 12.976834] ? ktime_get_ts64+0x86/0x230 [ 12.976859] kunit_try_run_case+0x1a5/0x480 [ 12.976883] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.976903] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.976925] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.976948] ? __kthread_parkme+0x82/0x180 [ 12.976969] ? preempt_count_sub+0x50/0x80 [ 12.976991] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.977015] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.977037] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.977070] kthread+0x337/0x6f0 [ 12.977089] ? trace_preempt_on+0x20/0xc0 [ 12.977112] ? __pfx_kthread+0x10/0x10 [ 12.977131] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.977151] ? calculate_sigpending+0x7b/0xa0 [ 12.977175] ? __pfx_kthread+0x10/0x10 [ 12.977198] ret_from_fork+0x116/0x1d0 [ 12.977215] ? __pfx_kthread+0x10/0x10 [ 12.977236] ret_from_fork_asm+0x1a/0x30 [ 12.977268] </TASK> [ 12.977281] [ 12.996116] Allocated by task 189: [ 12.996298] kasan_save_stack+0x45/0x70 [ 12.999170] kasan_save_track+0x18/0x40 [ 12.999391] kasan_save_alloc_info+0x3b/0x50 [ 12.999617] __kasan_kmalloc+0xb7/0xc0 [ 12.999776] __kmalloc_cache_noprof+0x189/0x420 [ 12.999937] kmalloc_oob_memset_2+0xac/0x330 [ 13.002030] kunit_try_run_case+0x1a5/0x480 [ 13.003178] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.003955] kthread+0x337/0x6f0 [ 13.004555] ret_from_fork+0x116/0x1d0 [ 13.005527] ret_from_fork_asm+0x1a/0x30 [ 13.006096] [ 13.006303] The buggy address belongs to the object at ffff888102af6200 [ 13.006303] which belongs to the cache kmalloc-128 of size 128 [ 13.006979] The buggy address is located 119 bytes inside of [ 13.006979] allocated 120-byte region [ffff888102af6200, ffff888102af6278) [ 13.008423] [ 13.008595] The buggy address belongs to the physical page: [ 13.009548] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102af6 [ 13.010430] flags: 0x200000000000000(node=0|zone=2) [ 13.010975] page_type: f5(slab) [ 13.011363] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.012411] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.013262] page dumped because: kasan: bad access detected [ 13.013924] [ 13.014025] Memory state around the buggy address: [ 13.014785] ffff888102af6100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 13.015600] ffff888102af6180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.016190] >ffff888102af6200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.016911] ^ [ 13.017574] ffff888102af6280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.018139] ffff888102af6300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.018683] ==================================================================