Date
May 13, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 19.350282] ================================================================== [ 19.350368] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 19.350451] Write of size 4 at addr fff00000c4065475 by task kunit_try_catch/174 [ 19.350525] [ 19.350573] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT [ 19.350672] Tainted: [B]=BAD_PAGE, [N]=TEST [ 19.350701] Hardware name: linux,dummy-virt (DT) [ 19.350739] Call trace: [ 19.350768] show_stack+0x20/0x38 (C) [ 19.351248] dump_stack_lvl+0x8c/0xd0 [ 19.351310] print_report+0x118/0x608 [ 19.351364] kasan_report+0xdc/0x128 [ 19.352132] kasan_check_range+0x100/0x1a8 [ 19.352655] __asan_memset+0x34/0x78 [ 19.352787] kmalloc_oob_memset_4+0x150/0x300 [ 19.353021] kunit_try_run_case+0x170/0x3f0 [ 19.353274] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.353338] kthread+0x328/0x630 [ 19.353393] ret_from_fork+0x10/0x20 [ 19.353742] [ 19.353827] Allocated by task 174: [ 19.354031] kasan_save_stack+0x3c/0x68 [ 19.354092] kasan_save_track+0x20/0x40 [ 19.354265] kasan_save_alloc_info+0x40/0x58 [ 19.354494] __kasan_kmalloc+0xd4/0xd8 [ 19.354543] __kmalloc_cache_noprof+0x15c/0x3c0 [ 19.354590] kmalloc_oob_memset_4+0xb0/0x300 [ 19.354636] kunit_try_run_case+0x170/0x3f0 [ 19.354802] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 19.355013] kthread+0x328/0x630 [ 19.355069] ret_from_fork+0x10/0x20 [ 19.355341] [ 19.355407] The buggy address belongs to the object at fff00000c4065400 [ 19.355407] which belongs to the cache kmalloc-128 of size 128 [ 19.355493] The buggy address is located 117 bytes inside of [ 19.355493] allocated 120-byte region [fff00000c4065400, fff00000c4065478) [ 19.355559] [ 19.355585] The buggy address belongs to the physical page: [ 19.355621] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104065 [ 19.355680] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 19.355736] page_type: f5(slab) [ 19.355786] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 19.355841] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 19.355885] page dumped because: kasan: bad access detected [ 19.355919] [ 19.355940] Memory state around the buggy address: [ 19.355997] fff00000c4065300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 19.356048] fff00000c4065380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.356093] >fff00000c4065400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 19.356133] ^ [ 19.356176] fff00000c4065480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.356220] fff00000c4065500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 19.356259] ==================================================================
[ 11.204221] ================================================================== [ 11.205384] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 11.205741] Write of size 4 at addr ffff8881029ce475 by task kunit_try_catch/191 [ 11.205967] [ 11.206063] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) [ 11.206115] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.206127] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.206148] Call Trace: [ 11.206160] <TASK> [ 11.206178] dump_stack_lvl+0x73/0xb0 [ 11.206207] print_report+0xd1/0x650 [ 11.206471] ? __virt_addr_valid+0x1db/0x2d0 [ 11.206496] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.206517] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.206551] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.206573] kasan_report+0x141/0x180 [ 11.206596] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.206632] kasan_check_range+0x10c/0x1c0 [ 11.206666] __asan_memset+0x27/0x50 [ 11.206686] kmalloc_oob_memset_4+0x166/0x330 [ 11.206708] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 11.206731] ? __schedule+0x10cc/0x2b60 [ 11.206754] ? __pfx_read_tsc+0x10/0x10 [ 11.206775] ? ktime_get_ts64+0x86/0x230 [ 11.206800] kunit_try_run_case+0x1a5/0x480 [ 11.206826] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.206847] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.206870] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.206892] ? __kthread_parkme+0x82/0x180 [ 11.206913] ? preempt_count_sub+0x50/0x80 [ 11.206938] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.206961] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.206984] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.207006] kthread+0x337/0x6f0 [ 11.207026] ? trace_preempt_on+0x20/0xc0 [ 11.207051] ? __pfx_kthread+0x10/0x10 [ 11.207071] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.207091] ? calculate_sigpending+0x7b/0xa0 [ 11.207116] ? __pfx_kthread+0x10/0x10 [ 11.207138] ret_from_fork+0x116/0x1d0 [ 11.207156] ? __pfx_kthread+0x10/0x10 [ 11.207177] ret_from_fork_asm+0x1a/0x30 [ 11.207219] </TASK> [ 11.207231] [ 11.219991] Allocated by task 191: [ 11.220346] kasan_save_stack+0x45/0x70 [ 11.220724] kasan_save_track+0x18/0x40 [ 11.221090] kasan_save_alloc_info+0x3b/0x50 [ 11.221272] __kasan_kmalloc+0xb7/0xc0 [ 11.221639] __kmalloc_cache_noprof+0x189/0x420 [ 11.222215] kmalloc_oob_memset_4+0xac/0x330 [ 11.222684] kunit_try_run_case+0x1a5/0x480 [ 11.222839] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.223015] kthread+0x337/0x6f0 [ 11.223136] ret_from_fork+0x116/0x1d0 [ 11.223304] ret_from_fork_asm+0x1a/0x30 [ 11.223456] [ 11.223666] The buggy address belongs to the object at ffff8881029ce400 [ 11.223666] which belongs to the cache kmalloc-128 of size 128 [ 11.224156] The buggy address is located 117 bytes inside of [ 11.224156] allocated 120-byte region [ffff8881029ce400, ffff8881029ce478) [ 11.224867] [ 11.225031] The buggy address belongs to the physical page: [ 11.225300] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029ce [ 11.225874] flags: 0x200000000000000(node=0|zone=2) [ 11.226212] page_type: f5(slab) [ 11.226378] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.226861] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.227235] page dumped because: kasan: bad access detected [ 11.227501] [ 11.227573] Memory state around the buggy address: [ 11.227908] ffff8881029ce300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.228269] ffff8881029ce380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.228650] >ffff8881029ce400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.229176] ^ [ 11.229874] ffff8881029ce480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.230748] ffff8881029ce500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.231734] ==================================================================