Date
July 3, 2025, 11:10 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.679988] ================================================================== [ 19.680143] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x150/0x2f8 [ 19.680253] Write of size 2 at addr fff00000c6345a77 by task kunit_try_catch/172 [ 19.680353] [ 19.680422] CPU: 0 UID: 0 PID: 172 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.680614] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.680675] Hardware name: linux,dummy-virt (DT) [ 19.680753] Call trace: [ 19.680807] show_stack+0x20/0x38 (C) [ 19.680914] dump_stack_lvl+0x8c/0xd0 [ 19.681039] print_report+0x118/0x608 [ 19.681127] kasan_report+0xdc/0x128 [ 19.681218] kasan_check_range+0x100/0x1a8 [ 19.681322] __asan_memset+0x34/0x78 [ 19.681601] kmalloc_oob_memset_2+0x150/0x2f8 [ 19.682040] kunit_try_run_case+0x170/0x3f0 [ 19.682317] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.682525] kthread+0x328/0x630 [ 19.682654] ret_from_fork+0x10/0x20 [ 19.682801] [ 19.682860] Allocated by task 172: [ 19.682950] kasan_save_stack+0x3c/0x68 [ 19.683351] kasan_save_track+0x20/0x40 [ 19.683626] kasan_save_alloc_info+0x40/0x58 [ 19.683752] __kasan_kmalloc+0xd4/0xd8 [ 19.683965] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.684063] kmalloc_oob_memset_2+0xb0/0x2f8 [ 19.684237] kunit_try_run_case+0x170/0x3f0 [ 19.684346] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.684630] kthread+0x328/0x630 [ 19.684979] ret_from_fork+0x10/0x20 [ 19.685605] [ 19.685719] The buggy address belongs to the object at fff00000c6345a00 [ 19.685719] which belongs to the cache kmalloc-128 of size 128 [ 19.685868] The buggy address is located 119 bytes inside of [ 19.685868] allocated 120-byte region [fff00000c6345a00, fff00000c6345a78) [ 19.686006] [ 19.686058] The buggy address belongs to the physical page: [ 19.686112] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106345 [ 19.686219] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.686322] page_type: f5(slab) [ 19.686404] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.686514] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.686602] page dumped because: kasan: bad access detected [ 19.686670] [ 19.687912] Memory state around the buggy address: [ 19.688554] fff00000c6345900: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.688907] fff00000c6345980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.689017] >fff00000c6345a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.689214] ^ [ 19.689429] fff00000c6345a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.689930] fff00000c6345b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.690042] ==================================================================
[ 11.605633] ================================================================== [ 11.606017] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_2+0x166/0x330 [ 11.606633] Write of size 2 at addr ffff8881027a9d77 by task kunit_try_catch/189 [ 11.607336] [ 11.607522] CPU: 1 UID: 0 PID: 189 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.607565] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.607576] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.607597] Call Trace: [ 11.607608] <TASK> [ 11.607622] dump_stack_lvl+0x73/0xb0 [ 11.607651] print_report+0xd1/0x650 [ 11.607673] ? __virt_addr_valid+0x1db/0x2d0 [ 11.607696] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.607716] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.607736] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.607766] kasan_report+0x141/0x180 [ 11.607790] ? kmalloc_oob_memset_2+0x166/0x330 [ 11.607815] kasan_check_range+0x10c/0x1c0 [ 11.607838] __asan_memset+0x27/0x50 [ 11.607857] kmalloc_oob_memset_2+0x166/0x330 [ 11.607879] ? __pfx_kmalloc_oob_memset_2+0x10/0x10 [ 11.607900] ? __schedule+0x10cc/0x2b60 [ 11.607922] ? __pfx_read_tsc+0x10/0x10 [ 11.607943] ? ktime_get_ts64+0x86/0x230 [ 11.607967] kunit_try_run_case+0x1a5/0x480 [ 11.607991] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.608012] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.608034] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.608055] ? __kthread_parkme+0x82/0x180 [ 11.608075] ? preempt_count_sub+0x50/0x80 [ 11.608098] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.608120] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.608150] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.608172] kthread+0x337/0x6f0 [ 11.608190] ? trace_preempt_on+0x20/0xc0 [ 11.608214] ? __pfx_kthread+0x10/0x10 [ 11.608234] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.608255] ? calculate_sigpending+0x7b/0xa0 [ 11.608278] ? __pfx_kthread+0x10/0x10 [ 11.608298] ret_from_fork+0x116/0x1d0 [ 11.608315] ? __pfx_kthread+0x10/0x10 [ 11.608334] ret_from_fork_asm+0x1a/0x30 [ 11.608363] </TASK> [ 11.608373] [ 11.619786] Allocated by task 189: [ 11.619934] kasan_save_stack+0x45/0x70 [ 11.620082] kasan_save_track+0x18/0x40 [ 11.620482] kasan_save_alloc_info+0x3b/0x50 [ 11.620907] __kasan_kmalloc+0xb7/0xc0 [ 11.621241] __kmalloc_cache_noprof+0x189/0x420 [ 11.621689] kmalloc_oob_memset_2+0xac/0x330 [ 11.622048] kunit_try_run_case+0x1a5/0x480 [ 11.622289] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.622845] kthread+0x337/0x6f0 [ 11.623168] ret_from_fork+0x116/0x1d0 [ 11.623450] ret_from_fork_asm+0x1a/0x30 [ 11.623638] [ 11.623708] The buggy address belongs to the object at ffff8881027a9d00 [ 11.623708] which belongs to the cache kmalloc-128 of size 128 [ 11.624064] The buggy address is located 119 bytes inside of [ 11.624064] allocated 120-byte region [ffff8881027a9d00, ffff8881027a9d78) [ 11.624661] [ 11.624751] The buggy address belongs to the physical page: [ 11.625019] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027a9 [ 11.625382] flags: 0x200000000000000(node=0|zone=2) [ 11.625609] page_type: f5(slab) [ 11.625831] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.626156] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.626385] page dumped because: kasan: bad access detected [ 11.626713] [ 11.626807] Memory state around the buggy address: [ 11.627034] ffff8881027a9c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.627324] ffff8881027a9c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.627613] >ffff8881027a9d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.627930] ^ [ 11.628259] ffff8881027a9d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.628535] ffff8881027a9e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.628905] ==================================================================