Date
July 5, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.039865] ================================================================== [ 19.039990] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 19.040096] Write of size 8 at addr fff00000c56f1b71 by task kunit_try_catch/177 [ 19.040204] [ 19.040270] CPU: 0 UID: 0 PID: 177 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 19.040450] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.040505] Hardware name: linux,dummy-virt (DT) [ 19.040569] Call trace: [ 19.040615] show_stack+0x20/0x38 (C) [ 19.040724] dump_stack_lvl+0x8c/0xd0 [ 19.041151] print_report+0x118/0x608 [ 19.041268] kasan_report+0xdc/0x128 [ 19.041376] kasan_check_range+0x100/0x1a8 [ 19.041477] __asan_memset+0x34/0x78 [ 19.041562] kmalloc_oob_memset_8+0x150/0x2f8 [ 19.041660] kunit_try_run_case+0x170/0x3f0 [ 19.041899] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.042042] kthread+0x328/0x630 [ 19.042136] ret_from_fork+0x10/0x20 [ 19.042254] [ 19.042294] Allocated by task 177: [ 19.042367] kasan_save_stack+0x3c/0x68 [ 19.042455] kasan_save_track+0x20/0x40 [ 19.042534] kasan_save_alloc_info+0x40/0x58 [ 19.042618] __kasan_kmalloc+0xd4/0xd8 [ 19.042842] __kmalloc_cache_noprof+0x16c/0x3c0 [ 19.042924] kmalloc_oob_memset_8+0xb0/0x2f8 [ 19.042998] kunit_try_run_case+0x170/0x3f0 [ 19.043074] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.043222] kthread+0x328/0x630 [ 19.043302] ret_from_fork+0x10/0x20 [ 19.043399] [ 19.043455] The buggy address belongs to the object at fff00000c56f1b00 [ 19.043455] which belongs to the cache kmalloc-128 of size 128 [ 19.043582] The buggy address is located 113 bytes inside of [ 19.043582] allocated 120-byte region [fff00000c56f1b00, fff00000c56f1b78) [ 19.043712] [ 19.043755] The buggy address belongs to the physical page: [ 19.043816] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1056f1 [ 19.044106] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.044220] page_type: f5(slab) [ 19.044311] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.044442] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.044534] page dumped because: kasan: bad access detected [ 19.044656] [ 19.044708] Memory state around the buggy address: [ 19.044848] fff00000c56f1a00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.044958] fff00000c56f1a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.045075] >fff00000c56f1b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.045351] ^ [ 19.045462] fff00000c56f1b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.045572] fff00000c56f1c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.045658] ==================================================================
[ 13.752222] ================================================================== [ 13.752772] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 13.753324] Write of size 8 at addr ffff888103332071 by task kunit_try_catch/193 [ 13.753640] [ 13.753905] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 13.753969] Tainted: [B]=BAD_PAGE, [N]=TEST [ 13.753984] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 13.754010] Call Trace: [ 13.754026] <TASK> [ 13.754253] dump_stack_lvl+0x73/0xb0 [ 13.754365] print_report+0xd1/0x650 [ 13.754393] ? __virt_addr_valid+0x1db/0x2d0 [ 13.754432] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.754458] ? kasan_complete_mode_report_info+0x2a/0x200 [ 13.754484] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.754510] kasan_report+0x141/0x180 [ 13.754537] ? kmalloc_oob_memset_8+0x166/0x330 [ 13.754569] kasan_check_range+0x10c/0x1c0 [ 13.754597] __asan_memset+0x27/0x50 [ 13.754620] kmalloc_oob_memset_8+0x166/0x330 [ 13.754659] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 13.754686] ? __schedule+0x10cc/0x2b60 [ 13.754713] ? __pfx_read_tsc+0x10/0x10 [ 13.754739] ? ktime_get_ts64+0x86/0x230 [ 13.754769] kunit_try_run_case+0x1a5/0x480 [ 13.754829] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.754856] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 13.754884] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 13.754911] ? __kthread_parkme+0x82/0x180 [ 13.754936] ? preempt_count_sub+0x50/0x80 [ 13.754966] ? __pfx_kunit_try_run_case+0x10/0x10 [ 13.754994] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.755020] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 13.755047] kthread+0x337/0x6f0 [ 13.755070] ? trace_preempt_on+0x20/0xc0 [ 13.755099] ? __pfx_kthread+0x10/0x10 [ 13.755124] ? _raw_spin_unlock_irq+0x47/0x80 [ 13.755148] ? calculate_sigpending+0x7b/0xa0 [ 13.755180] ? __pfx_kthread+0x10/0x10 [ 13.755209] ret_from_fork+0x116/0x1d0 [ 13.755231] ? __pfx_kthread+0x10/0x10 [ 13.755255] ret_from_fork_asm+0x1a/0x30 [ 13.755293] </TASK> [ 13.755308] [ 13.767716] Allocated by task 193: [ 13.767978] kasan_save_stack+0x45/0x70 [ 13.768292] kasan_save_track+0x18/0x40 [ 13.768591] kasan_save_alloc_info+0x3b/0x50 [ 13.769044] __kasan_kmalloc+0xb7/0xc0 [ 13.769250] __kmalloc_cache_noprof+0x189/0x420 [ 13.769719] kmalloc_oob_memset_8+0xac/0x330 [ 13.770116] kunit_try_run_case+0x1a5/0x480 [ 13.770396] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 13.770763] kthread+0x337/0x6f0 [ 13.771045] ret_from_fork+0x116/0x1d0 [ 13.771337] ret_from_fork_asm+0x1a/0x30 [ 13.771763] [ 13.771869] The buggy address belongs to the object at ffff888103332000 [ 13.771869] which belongs to the cache kmalloc-128 of size 128 [ 13.772876] The buggy address is located 113 bytes inside of [ 13.772876] allocated 120-byte region [ffff888103332000, ffff888103332078) [ 13.773612] [ 13.773727] The buggy address belongs to the physical page: [ 13.774400] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103332 [ 13.774984] flags: 0x200000000000000(node=0|zone=2) [ 13.775323] page_type: f5(slab) [ 13.775587] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 13.776005] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 13.776525] page dumped because: kasan: bad access detected [ 13.776850] [ 13.777072] Memory state around the buggy address: [ 13.777334] ffff888103331f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.777748] ffff888103331f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.778126] >ffff888103332000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 13.778450] ^ [ 13.779123] ffff888103332080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.779487] ffff888103332100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 13.779918] ==================================================================