Date
July 9, 2025, 1:08 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.373921] ================================================================== [ 29.373976] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 29.374615] Write of size 4 at addr fff00000c57d4e75 by task kunit_try_catch/206 [ 29.374678] [ 29.374711] CPU: 0 UID: 0 PID: 206 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5-next-20250709 #1 PREEMPT [ 29.374841] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.374868] Hardware name: linux,dummy-virt (DT) [ 29.375000] Call trace: [ 29.375025] show_stack+0x20/0x38 (C) [ 29.375403] dump_stack_lvl+0x8c/0xd0 [ 29.375901] print_report+0x118/0x5d0 [ 29.375946] kasan_report+0xdc/0x128 [ 29.376232] kasan_check_range+0x100/0x1a8 [ 29.376279] __asan_memset+0x34/0x78 [ 29.376321] kmalloc_oob_memset_4+0x150/0x300 [ 29.376599] kunit_try_run_case+0x170/0x3f0 [ 29.376984] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.377038] kthread+0x328/0x630 [ 29.377575] ret_from_fork+0x10/0x20 [ 29.377623] [ 29.377643] Allocated by task 206: [ 29.378135] kasan_save_stack+0x3c/0x68 [ 29.378492] kasan_save_track+0x20/0x40 [ 29.378530] kasan_save_alloc_info+0x40/0x58 [ 29.378568] __kasan_kmalloc+0xd4/0xd8 [ 29.378604] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.378645] kmalloc_oob_memset_4+0xb0/0x300 [ 29.379667] kunit_try_run_case+0x170/0x3f0 [ 29.379737] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.379781] kthread+0x328/0x630 [ 29.379814] ret_from_fork+0x10/0x20 [ 29.379849] [ 29.379869] The buggy address belongs to the object at fff00000c57d4e00 [ 29.379869] which belongs to the cache kmalloc-128 of size 128 [ 29.379927] The buggy address is located 117 bytes inside of [ 29.379927] allocated 120-byte region [fff00000c57d4e00, fff00000c57d4e78) [ 29.380084] [ 29.380495] The buggy address belongs to the physical page: [ 29.380797] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1057d4 [ 29.380963] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 29.381020] page_type: f5(slab) [ 29.381073] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 29.381196] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 29.381360] page dumped because: kasan: bad access detected [ 29.381395] [ 29.381583] Memory state around the buggy address: [ 29.381620] fff00000c57d4d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 29.381663] fff00000c57d4d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.381876] >fff00000c57d4e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 29.382340] ^ [ 29.382634] fff00000c57d4e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.382702] fff00000c57d4f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.382739] ==================================================================
[ 24.209071] ================================================================== [ 24.209912] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 24.210624] Write of size 4 at addr ffff88810456ad75 by task kunit_try_catch/224 [ 24.211073] [ 24.211170] CPU: 1 UID: 0 PID: 224 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc5-next-20250709 #1 PREEMPT(voluntary) [ 24.211222] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 24.211236] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.211257] Call Trace: [ 24.211271] <TASK> [ 24.211290] dump_stack_lvl+0x73/0xb0 [ 24.211323] print_report+0xd1/0x610 [ 24.211358] ? __virt_addr_valid+0x1db/0x2d0 [ 24.211383] ? kmalloc_oob_memset_4+0x166/0x330 [ 24.211416] ? kasan_complete_mode_report_info+0x2a/0x200 [ 24.211442] ? kmalloc_oob_memset_4+0x166/0x330 [ 24.211463] kasan_report+0x141/0x180 [ 24.211484] ? kmalloc_oob_memset_4+0x166/0x330 [ 24.211510] kasan_check_range+0x10c/0x1c0 [ 24.211532] __asan_memset+0x27/0x50 [ 24.211555] kmalloc_oob_memset_4+0x166/0x330 [ 24.211576] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 24.211598] ? __schedule+0x10cc/0x2b60 [ 24.211622] ? __pfx_read_tsc+0x10/0x10 [ 24.211643] ? ktime_get_ts64+0x86/0x230 [ 24.211669] kunit_try_run_case+0x1a5/0x480 [ 24.211691] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.211720] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 24.211743] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.211767] ? __kthread_parkme+0x82/0x180 [ 24.211801] ? preempt_count_sub+0x50/0x80 [ 24.211829] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.211850] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.211874] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.211951] kthread+0x337/0x6f0 [ 24.211972] ? trace_preempt_on+0x20/0xc0 [ 24.211995] ? __pfx_kthread+0x10/0x10 [ 24.212016] ? _raw_spin_unlock_irq+0x47/0x80 [ 24.212038] ? calculate_sigpending+0x7b/0xa0 [ 24.212062] ? __pfx_kthread+0x10/0x10 [ 24.212083] ret_from_fork+0x116/0x1d0 [ 24.212101] ? __pfx_kthread+0x10/0x10 [ 24.212122] ret_from_fork_asm+0x1a/0x30 [ 24.212153] </TASK> [ 24.212164] [ 24.220192] Allocated by task 224: [ 24.220377] kasan_save_stack+0x45/0x70 [ 24.220520] kasan_save_track+0x18/0x40 [ 24.220729] kasan_save_alloc_info+0x3b/0x50 [ 24.221180] __kasan_kmalloc+0xb7/0xc0 [ 24.221387] __kmalloc_cache_noprof+0x189/0x420 [ 24.221576] kmalloc_oob_memset_4+0xac/0x330 [ 24.221773] kunit_try_run_case+0x1a5/0x480 [ 24.221908] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.222258] kthread+0x337/0x6f0 [ 24.222451] ret_from_fork+0x116/0x1d0 [ 24.222650] ret_from_fork_asm+0x1a/0x30 [ 24.222826] [ 24.222893] The buggy address belongs to the object at ffff88810456ad00 [ 24.222893] which belongs to the cache kmalloc-128 of size 128 [ 24.223291] The buggy address is located 117 bytes inside of [ 24.223291] allocated 120-byte region [ffff88810456ad00, ffff88810456ad78) [ 24.223846] [ 24.224028] The buggy address belongs to the physical page: [ 24.224208] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10456a [ 24.224443] flags: 0x200000000000000(node=0|zone=2) [ 24.224672] page_type: f5(slab) [ 24.224963] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 24.225309] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 24.225803] page dumped because: kasan: bad access detected [ 24.226186] [ 24.226283] Memory state around the buggy address: [ 24.226497] ffff88810456ac00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.226845] ffff88810456ac80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.227228] >ffff88810456ad00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 24.227494] ^ [ 24.227715] ffff88810456ad80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.228317] ffff88810456ae00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.228875] ==================================================================