Date
July 9, 2025, 1:08 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.393208] ================================================================== [ 29.394241] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 29.394788] Write of size 8 at addr fff00000c57d4f71 by task kunit_try_catch/208 [ 29.394859] [ 29.394891] CPU: 0 UID: 0 PID: 208 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250709 #1 PREEMPT [ 29.395312] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.395426] Hardware name: linux,dummy-virt (DT) [ 29.395457] Call trace: [ 29.395590] show_stack+0x20/0x38 (C) [ 29.395872] dump_stack_lvl+0x8c/0xd0 [ 29.396155] print_report+0x118/0x5d0 [ 29.396510] kasan_report+0xdc/0x128 [ 29.396618] kasan_check_range+0x100/0x1a8 [ 29.397161] __asan_memset+0x34/0x78 [ 29.397210] kmalloc_oob_memset_8+0x150/0x2f8 [ 29.397259] kunit_try_run_case+0x170/0x3f0 [ 29.397617] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.397754] kthread+0x328/0x630 [ 29.397821] ret_from_fork+0x10/0x20 [ 29.398087] [ 29.398110] Allocated by task 208: [ 29.398280] kasan_save_stack+0x3c/0x68 [ 29.398418] kasan_save_track+0x20/0x40 [ 29.398557] kasan_save_alloc_info+0x40/0x58 [ 29.398594] __kasan_kmalloc+0xd4/0xd8 [ 29.398630] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.398670] kmalloc_oob_memset_8+0xb0/0x2f8 [ 29.398707] kunit_try_run_case+0x170/0x3f0 [ 29.398745] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.399834] kthread+0x328/0x630 [ 29.400009] ret_from_fork+0x10/0x20 [ 29.400260] [ 29.400437] The buggy address belongs to the object at fff00000c57d4f00 [ 29.400437] which belongs to the cache kmalloc-128 of size 128 [ 29.400518] The buggy address is located 113 bytes inside of [ 29.400518] allocated 120-byte region [fff00000c57d4f00, fff00000c57d4f78) [ 29.400630] [ 29.400795] The buggy address belongs to the physical page: [ 29.400984] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1057d4 [ 29.401269] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.401330] page_type: f5(slab) [ 29.401380] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 29.401429] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.401905] page dumped because: kasan: bad access detected [ 29.402206] [ 29.402228] Memory state around the buggy address: [ 29.402260] fff00000c57d4e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.402303] fff00000c57d4e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.402816] >fff00000c57d4f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.403020] ^ [ 29.403077] fff00000c57d4f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.403441] fff00000c57d5000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.403485] ==================================================================
[ 24.232680] ================================================================== [ 24.233577] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 24.233940] Write of size 8 at addr ffff8881058c1671 by task kunit_try_catch/226 [ 24.234333] [ 24.234474] CPU: 0 UID: 0 PID: 226 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5-next-20250709 #1 PREEMPT(voluntary) [ 24.234530] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 24.234543] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.234566] Call Trace: [ 24.234581] <TASK> [ 24.234602] dump_stack_lvl+0x73/0xb0 [ 24.234636] print_report+0xd1/0x610 [ 24.234668] ? __virt_addr_valid+0x1db/0x2d0 [ 24.234712] ? kmalloc_oob_memset_8+0x166/0x330 [ 24.234733] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.234759] ? kmalloc_oob_memset_8+0x166/0x330 [ 24.234780] kasan_report+0x141/0x180 [ 24.234812] ? kmalloc_oob_memset_8+0x166/0x330 [ 24.234837] kasan_check_range+0x10c/0x1c0 [ 24.234859] __asan_memset+0x27/0x50 [ 24.234882] kmalloc_oob_memset_8+0x166/0x330 [ 24.234955] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 24.234977] ? __schedule+0x10cc/0x2b60 [ 24.235002] ? __pfx_read_tsc+0x10/0x10 [ 24.235043] ? ktime_get_ts64+0x86/0x230 [ 24.235069] kunit_try_run_case+0x1a5/0x480 [ 24.235093] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.235121] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.235144] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.235167] ? __kthread_parkme+0x82/0x180 [ 24.235199] ? preempt_count_sub+0x50/0x80 [ 24.235223] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.235245] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.235269] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.235293] kthread+0x337/0x6f0 [ 24.235312] ? trace_preempt_on+0x20/0xc0 [ 24.235336] ? __pfx_kthread+0x10/0x10 [ 24.235356] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.235378] ? calculate_sigpending+0x7b/0xa0 [ 24.235402] ? __pfx_kthread+0x10/0x10 [ 24.235422] ret_from_fork+0x116/0x1d0 [ 24.235441] ? __pfx_kthread+0x10/0x10 [ 24.235461] ret_from_fork_asm+0x1a/0x30 [ 24.235493] </TASK> [ 24.235505] [ 24.242876] Allocated by task 226: [ 24.243105] kasan_save_stack+0x45/0x70 [ 24.243247] kasan_save_track+0x18/0x40 [ 24.243372] kasan_save_alloc_info+0x3b/0x50 [ 24.243552] __kasan_kmalloc+0xb7/0xc0 [ 24.243755] __kmalloc_cache_noprof+0x189/0x420 [ 24.243976] kmalloc_oob_memset_8+0xac/0x330 [ 24.244171] kunit_try_run_case+0x1a5/0x480 [ 24.244366] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.244528] kthread+0x337/0x6f0 [ 24.244640] ret_from_fork+0x116/0x1d0 [ 24.244849] ret_from_fork_asm+0x1a/0x30 [ 24.245021] [ 24.245106] The buggy address belongs to the object at ffff8881058c1600 [ 24.245106] which belongs to the cache kmalloc-128 of size 128 [ 24.245576] The buggy address is located 113 bytes inside of [ 24.245576] allocated 120-byte region [ffff8881058c1600, ffff8881058c1678) [ 24.247484] [ 24.247610] The buggy address belongs to the physical page: [ 24.248140] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1058c1 [ 24.248639] flags: 0x200000000000000(node=0|zone=2) [ 24.249200] page_type: f5(slab) [ 24.249457] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 24.250221] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.250544] page dumped because: kasan: bad access detected [ 24.251033] [ 24.251136] Memory state around the buggy address: [ 24.251559] ffff8881058c1500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.252232] ffff8881058c1580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.252817] >ffff8881058c1600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 24.253314] ^ [ 24.253955] ffff8881058c1680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.254484] ffff8881058c1700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.255212] ==================================================================