Date
May 12, 2025, 11:48 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 16.797512] ================================================================== [ 16.797810] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x150/0x2f8 [ 16.798051] Write of size 16 at addr fff00000c78d9269 by task kunit_try_catch/178 [ 16.798368] [ 16.798679] CPU: 1 UID: 0 PID: 178 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT [ 16.799063] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.799328] Hardware name: linux,dummy-virt (DT) [ 16.799391] Call trace: [ 16.799455] show_stack+0x20/0x38 (C) [ 16.799581] dump_stack_lvl+0x8c/0xd0 [ 16.799876] print_report+0x118/0x608 [ 16.800004] kasan_report+0xdc/0x128 [ 16.800115] kasan_check_range+0x100/0x1a8 [ 16.800216] __asan_memset+0x34/0x78 [ 16.800821] kmalloc_oob_memset_16+0x150/0x2f8 [ 16.801061] kunit_try_run_case+0x170/0x3f0 [ 16.801174] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.801297] kthread+0x328/0x630 [ 16.801394] ret_from_fork+0x10/0x20 [ 16.801494] [ 16.801530] Allocated by task 178: [ 16.801586] kasan_save_stack+0x3c/0x68 [ 16.801994] kasan_save_track+0x20/0x40 [ 16.802211] kasan_save_alloc_info+0x40/0x58 [ 16.802341] __kasan_kmalloc+0xd4/0xd8 [ 16.802582] __kmalloc_cache_noprof+0x15c/0x3c0 [ 16.802678] kmalloc_oob_memset_16+0xb0/0x2f8 [ 16.802754] kunit_try_run_case+0x170/0x3f0 [ 16.802816] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 16.802894] kthread+0x328/0x630 [ 16.802962] ret_from_fork+0x10/0x20 [ 16.803049] [ 16.803095] The buggy address belongs to the object at fff00000c78d9200 [ 16.803095] which belongs to the cache kmalloc-128 of size 128 [ 16.803220] The buggy address is located 105 bytes inside of [ 16.803220] allocated 120-byte region [fff00000c78d9200, fff00000c78d9278) [ 16.803786] [ 16.803848] The buggy address belongs to the physical page: [ 16.804162] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1078d9 [ 16.804451] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 16.804660] page_type: f5(slab) [ 16.804862] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 16.805024] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.805307] page dumped because: kasan: bad access detected [ 16.805586] [ 16.805710] Memory state around the buggy address: [ 16.805875] fff00000c78d9100: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.805975] fff00000c78d9180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.806064] >fff00000c78d9200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.806130] ^ [ 16.806208] fff00000c78d9280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.806296] fff00000c78d9300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.806378] ==================================================================
[ 16.803317] ================================================================== [ 16.803925] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_16+0x166/0x330 [ 16.804546] Write of size 16 at addr ffff888102b42869 by task kunit_try_catch/195 [ 16.805192] [ 16.805692] CPU: 1 UID: 0 PID: 195 Comm: kunit_try_catch Tainted: G B N 6.15.0-rc6-next-20250512 #1 PREEMPT(voluntary) [ 16.805776] Tainted: [B]=BAD_PAGE, [N]=TEST [ 16.805791] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 16.805816] Call Trace: [ 16.805833] <TASK> [ 16.805856] dump_stack_lvl+0x73/0xb0 [ 16.805912] print_report+0xd1/0x650 [ 16.805953] ? __virt_addr_valid+0x1db/0x2d0 [ 16.805998] ? kmalloc_oob_memset_16+0x166/0x330 [ 16.806037] ? kasan_complete_mode_report_info+0x2a/0x200 [ 16.806080] ? kmalloc_oob_memset_16+0x166/0x330 [ 16.806123] kasan_report+0x141/0x180 [ 16.806162] ? kmalloc_oob_memset_16+0x166/0x330 [ 16.806216] kasan_check_range+0x10c/0x1c0 [ 16.806252] __asan_memset+0x27/0x50 [ 16.806310] kmalloc_oob_memset_16+0x166/0x330 [ 16.806354] ? __pfx_kmalloc_oob_memset_16+0x10/0x10 [ 16.806402] ? __schedule+0x10cc/0x2b60 [ 16.806450] ? __pfx_read_tsc+0x10/0x10 [ 16.806494] ? ktime_get_ts64+0x86/0x230 [ 16.806545] kunit_try_run_case+0x1a5/0x480 [ 16.806597] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.806644] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 16.806683] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 16.806736] ? __kthread_parkme+0x82/0x180 [ 16.806759] ? preempt_count_sub+0x50/0x80 [ 16.806783] ? __pfx_kunit_try_run_case+0x10/0x10 [ 16.806808] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.806832] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 16.806856] kthread+0x337/0x6f0 [ 16.806876] ? trace_preempt_on+0x20/0xc0 [ 16.806902] ? __pfx_kthread+0x10/0x10 [ 16.806924] ? _raw_spin_unlock_irq+0x47/0x80 [ 16.806944] ? calculate_sigpending+0x7b/0xa0 [ 16.806971] ? __pfx_kthread+0x10/0x10 [ 16.807002] ret_from_fork+0x116/0x1d0 [ 16.807026] ? __pfx_kthread+0x10/0x10 [ 16.807047] ret_from_fork_asm+0x1a/0x30 [ 16.807079] </TASK> [ 16.807093] [ 16.817825] Allocated by task 195: [ 16.818107] kasan_save_stack+0x45/0x70 [ 16.818476] kasan_save_track+0x18/0x40 [ 16.818864] kasan_save_alloc_info+0x3b/0x50 [ 16.819175] __kasan_kmalloc+0xb7/0xc0 [ 16.819491] __kmalloc_cache_noprof+0x189/0x420 [ 16.819889] kmalloc_oob_memset_16+0xac/0x330 [ 16.820179] kunit_try_run_case+0x1a5/0x480 [ 16.820605] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 16.821041] kthread+0x337/0x6f0 [ 16.821227] ret_from_fork+0x116/0x1d0 [ 16.821575] ret_from_fork_asm+0x1a/0x30 [ 16.821953] [ 16.822111] The buggy address belongs to the object at ffff888102b42800 [ 16.822111] which belongs to the cache kmalloc-128 of size 128 [ 16.822814] The buggy address is located 105 bytes inside of [ 16.822814] allocated 120-byte region [ffff888102b42800, ffff888102b42878) [ 16.823632] [ 16.823855] The buggy address belongs to the physical page: [ 16.824230] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b42 [ 16.824806] flags: 0x200000000000000(node=0|zone=2) [ 16.825111] page_type: f5(slab) [ 16.825445] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 16.825884] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 16.826433] page dumped because: kasan: bad access detected [ 16.826774] [ 16.826978] Memory state around the buggy address: [ 16.827395] ffff888102b42700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 16.827865] ffff888102b42780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.828409] >ffff888102b42800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 16.828855] ^ [ 16.829284] ffff888102b42880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.829823] ffff888102b42900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 16.830119] ==================================================================