Date
July 9, 2025, 11:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.785997] ================================================================== [ 16.786061] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x150/0x2f8 [ 16.786132] Write of size 8 at addr fff00000c638bb71 by task kunit_try_catch/176 [ 16.788202] [ 16.788346] CPU: 1 UID: 0 PID: 176 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 16.788724] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.788752] Hardware name: linux,dummy-virt (DT) [ 16.788782] Call trace: [ 16.789654] show_stack+0x20/0x38 (C) [ 16.790284] dump_stack_lvl+0x8c/0xd0 [ 16.790739] print_report+0x118/0x608 [ 16.790788] kasan_report+0xdc/0x128 [ 16.790833] kasan_check_range+0x100/0x1a8 [ 16.790880] __asan_memset+0x34/0x78 [ 16.791779] kmalloc_oob_memset_8+0x150/0x2f8 [ 16.791841] kunit_try_run_case+0x170/0x3f0 [ 16.791891] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.791942] kthread+0x328/0x630 [ 16.791984] ret_from_fork+0x10/0x20 [ 16.792034] [ 16.792052] Allocated by task 176: [ 16.792080] kasan_save_stack+0x3c/0x68 [ 16.792134] kasan_save_track+0x20/0x40 [ 16.792171] kasan_save_alloc_info+0x40/0x58 [ 16.792210] __kasan_kmalloc+0xd4/0xd8 [ 16.792246] __kmalloc_cache_noprof+0x16c/0x3c0 [ 16.792284] kmalloc_oob_memset_8+0xb0/0x2f8 [ 16.792319] kunit_try_run_case+0x170/0x3f0 [ 16.792355] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.792396] kthread+0x328/0x630 [ 16.792429] ret_from_fork+0x10/0x20 [ 16.792465] [ 16.792483] The buggy address belongs to the object at fff00000c638bb00 [ 16.792483] which belongs to the cache kmalloc-128 of size 128 [ 16.792538] The buggy address is located 113 bytes inside of [ 16.792538] allocated 120-byte region [fff00000c638bb00, fff00000c638bb78) [ 16.792597] [ 16.792618] The buggy address belongs to the physical page: [ 16.792649] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10638b [ 16.792702] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.792750] page_type: f5(slab) [ 16.792788] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.796882] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.797877] page dumped because: kasan: bad access detected [ 16.797919] [ 16.797939] Memory state around the buggy address: [ 16.798621] fff00000c638ba00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.799105] fff00000c638ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.799253] >fff00000c638bb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.799290] ^ [ 16.799329] fff00000c638bb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.799375] fff00000c638bc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.799412] ==================================================================
[ 12.683626] ================================================================== [ 12.684776] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_8+0x166/0x330 [ 12.685520] Write of size 8 at addr ffff88810291d271 by task kunit_try_catch/193 [ 12.685971] [ 12.686159] CPU: 1 UID: 0 PID: 193 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.686204] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.686227] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.686247] Call Trace: [ 12.686258] <TASK> [ 12.686273] dump_stack_lvl+0x73/0xb0 [ 12.686303] print_report+0xd1/0x650 [ 12.686336] ? __virt_addr_valid+0x1db/0x2d0 [ 12.686357] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.686379] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.686412] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.686435] kasan_report+0x141/0x180 [ 12.686456] ? kmalloc_oob_memset_8+0x166/0x330 [ 12.686483] kasan_check_range+0x10c/0x1c0 [ 12.686506] __asan_memset+0x27/0x50 [ 12.686525] kmalloc_oob_memset_8+0x166/0x330 [ 12.686547] ? __pfx_kmalloc_oob_memset_8+0x10/0x10 [ 12.686570] ? __schedule+0x10cc/0x2b60 [ 12.686592] ? __pfx_read_tsc+0x10/0x10 [ 12.686614] ? ktime_get_ts64+0x86/0x230 [ 12.686638] kunit_try_run_case+0x1a5/0x480 [ 12.686662] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.686684] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.686717] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.686741] ? __kthread_parkme+0x82/0x180 [ 12.686761] ? preempt_count_sub+0x50/0x80 [ 12.686785] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.686809] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.686833] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.686857] kthread+0x337/0x6f0 [ 12.686876] ? trace_preempt_on+0x20/0xc0 [ 12.686899] ? __pfx_kthread+0x10/0x10 [ 12.686919] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.686940] ? calculate_sigpending+0x7b/0xa0 [ 12.686963] ? __pfx_kthread+0x10/0x10 [ 12.686984] ret_from_fork+0x116/0x1d0 [ 12.687002] ? __pfx_kthread+0x10/0x10 [ 12.687077] ret_from_fork_asm+0x1a/0x30 [ 12.687112] </TASK> [ 12.687123] [ 12.700647] Allocated by task 193: [ 12.700870] kasan_save_stack+0x45/0x70 [ 12.701300] kasan_save_track+0x18/0x40 [ 12.701442] kasan_save_alloc_info+0x3b/0x50 [ 12.701591] __kasan_kmalloc+0xb7/0xc0 [ 12.701734] __kmalloc_cache_noprof+0x189/0x420 [ 12.701889] kmalloc_oob_memset_8+0xac/0x330 [ 12.702117] kunit_try_run_case+0x1a5/0x480 [ 12.702341] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.702562] kthread+0x337/0x6f0 [ 12.702740] ret_from_fork+0x116/0x1d0 [ 12.702906] ret_from_fork_asm+0x1a/0x30 [ 12.703116] [ 12.703302] The buggy address belongs to the object at ffff88810291d200 [ 12.703302] which belongs to the cache kmalloc-128 of size 128 [ 12.703836] The buggy address is located 113 bytes inside of [ 12.703836] allocated 120-byte region [ffff88810291d200, ffff88810291d278) [ 12.704415] [ 12.704494] The buggy address belongs to the physical page: [ 12.704785] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10291d [ 12.705210] flags: 0x200000000000000(node=0|zone=2) [ 12.705397] page_type: f5(slab) [ 12.705563] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.705912] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.706260] page dumped because: kasan: bad access detected [ 12.706627] [ 12.706753] Memory state around the buggy address: [ 12.706998] ffff88810291d100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.707412] ffff88810291d180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.707741] >ffff88810291d200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.708093] ^ [ 12.708412] ffff88810291d280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.708737] ffff88810291d300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.709043] ==================================================================