Date
July 18, 2025, 11:11 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.419389] ================================================================== [ 15.419712] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 15.419774] Write of size 4 at addr fff00000c3f17e75 by task kunit_try_catch/174 [ 15.419845] [ 15.419885] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.420028] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.420068] Hardware name: linux,dummy-virt (DT) [ 15.420138] Call trace: [ 15.420163] show_stack+0x20/0x38 (C) [ 15.420231] dump_stack_lvl+0x8c/0xd0 [ 15.420287] print_report+0x118/0x5d0 [ 15.420351] kasan_report+0xdc/0x128 [ 15.420396] kasan_check_range+0x100/0x1a8 [ 15.420454] __asan_memset+0x34/0x78 [ 15.420505] kmalloc_oob_memset_4+0x150/0x300 [ 15.420562] kunit_try_run_case+0x170/0x3f0 [ 15.420855] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.420940] kthread+0x328/0x630 [ 15.420986] ret_from_fork+0x10/0x20 [ 15.421033] [ 15.421076] Allocated by task 174: [ 15.421116] kasan_save_stack+0x3c/0x68 [ 15.421158] kasan_save_track+0x20/0x40 [ 15.421217] kasan_save_alloc_info+0x40/0x58 [ 15.421372] __kasan_kmalloc+0xd4/0xd8 [ 15.421588] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.421671] kmalloc_oob_memset_4+0xb0/0x300 [ 15.421842] kunit_try_run_case+0x170/0x3f0 [ 15.421924] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.421983] kthread+0x328/0x630 [ 15.422017] ret_from_fork+0x10/0x20 [ 15.422053] [ 15.422073] The buggy address belongs to the object at fff00000c3f17e00 [ 15.422073] which belongs to the cache kmalloc-128 of size 128 [ 15.422412] The buggy address is located 117 bytes inside of [ 15.422412] allocated 120-byte region [fff00000c3f17e00, fff00000c3f17e78) [ 15.422534] [ 15.422646] The buggy address belongs to the physical page: [ 15.422677] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f17 [ 15.422764] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.422941] page_type: f5(slab) [ 15.423132] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.423288] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.423432] page dumped because: kasan: bad access detected [ 15.423491] [ 15.423523] Memory state around the buggy address: [ 15.423562] fff00000c3f17d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.423604] fff00000c3f17d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.423646] >fff00000c3f17e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.423734] ^ [ 15.423775] fff00000c3f17e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.423816] fff00000c3f17f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.423852] ==================================================================
[ 12.275539] ================================================================== [ 12.275996] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 12.276539] Write of size 4 at addr ffff8881030d9875 by task kunit_try_catch/193 [ 12.277094] [ 12.277205] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.277328] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.277341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.277373] Call Trace: [ 12.277385] <TASK> [ 12.277400] dump_stack_lvl+0x73/0xb0 [ 12.277429] print_report+0xd1/0x610 [ 12.277450] ? __virt_addr_valid+0x1db/0x2d0 [ 12.277481] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.277511] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.277533] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.277556] kasan_report+0x141/0x180 [ 12.277588] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.277614] kasan_check_range+0x10c/0x1c0 [ 12.277636] __asan_memset+0x27/0x50 [ 12.277655] kmalloc_oob_memset_4+0x166/0x330 [ 12.277685] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.277708] ? __schedule+0x10cc/0x2b60 [ 12.277730] ? __pfx_read_tsc+0x10/0x10 [ 12.277750] ? ktime_get_ts64+0x86/0x230 [ 12.277785] kunit_try_run_case+0x1a5/0x480 [ 12.277810] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.277831] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.277855] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.277877] ? __kthread_parkme+0x82/0x180 [ 12.277906] ? preempt_count_sub+0x50/0x80 [ 12.277929] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.277952] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.277986] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.278009] kthread+0x337/0x6f0 [ 12.278092] ? trace_preempt_on+0x20/0xc0 [ 12.278116] ? __pfx_kthread+0x10/0x10 [ 12.278135] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.278156] ? calculate_sigpending+0x7b/0xa0 [ 12.278180] ? __pfx_kthread+0x10/0x10 [ 12.278200] ret_from_fork+0x116/0x1d0 [ 12.278219] ? __pfx_kthread+0x10/0x10 [ 12.278238] ret_from_fork_asm+0x1a/0x30 [ 12.278268] </TASK> [ 12.278291] [ 12.286768] Allocated by task 193: [ 12.286929] kasan_save_stack+0x45/0x70 [ 12.287306] kasan_save_track+0x18/0x40 [ 12.287549] kasan_save_alloc_info+0x3b/0x50 [ 12.287740] __kasan_kmalloc+0xb7/0xc0 [ 12.287875] __kmalloc_cache_noprof+0x189/0x420 [ 12.288048] kmalloc_oob_memset_4+0xac/0x330 [ 12.288294] kunit_try_run_case+0x1a5/0x480 [ 12.288585] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.288835] kthread+0x337/0x6f0 [ 12.288964] ret_from_fork+0x116/0x1d0 [ 12.289368] ret_from_fork_asm+0x1a/0x30 [ 12.289689] [ 12.289782] The buggy address belongs to the object at ffff8881030d9800 [ 12.289782] which belongs to the cache kmalloc-128 of size 128 [ 12.290399] The buggy address is located 117 bytes inside of [ 12.290399] allocated 120-byte region [ffff8881030d9800, ffff8881030d9878) [ 12.290993] [ 12.291066] The buggy address belongs to the physical page: [ 12.291240] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1030d9 [ 12.291488] flags: 0x200000000000000(node=0|zone=2) [ 12.291849] page_type: f5(slab) [ 12.292206] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.292721] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.293137] page dumped because: kasan: bad access detected [ 12.293324] [ 12.293393] Memory state around the buggy address: [ 12.293548] ffff8881030d9700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.294161] ffff8881030d9780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.294618] >ffff8881030d9800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.294949] ^ [ 12.295504] ffff8881030d9880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.295865] ffff8881030d9900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.296271] ==================================================================