Date
July 20, 2025, 11:12 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 15.368755] ================================================================== [ 15.368874] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 15.368999] Write of size 4 at addr fff00000c3fc2c75 by task kunit_try_catch/174 [ 15.369052] [ 15.369217] CPU: 0 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT [ 15.369417] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.369466] Hardware name: linux,dummy-virt (DT) [ 15.369521] Call trace: [ 15.369554] show_stack+0x20/0x38 (C) [ 15.369621] dump_stack_lvl+0x8c/0xd0 [ 15.369677] print_report+0x118/0x5d0 [ 15.369758] kasan_report+0xdc/0x128 [ 15.369803] kasan_check_range+0x100/0x1a8 [ 15.369849] __asan_memset+0x34/0x78 [ 15.369889] kmalloc_oob_memset_4+0x150/0x300 [ 15.370118] kunit_try_run_case+0x170/0x3f0 [ 15.370212] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.370263] kthread+0x328/0x630 [ 15.370303] ret_from_fork+0x10/0x20 [ 15.370356] [ 15.370496] Allocated by task 174: [ 15.370609] kasan_save_stack+0x3c/0x68 [ 15.370656] kasan_save_track+0x20/0x40 [ 15.370704] kasan_save_alloc_info+0x40/0x58 [ 15.370769] __kasan_kmalloc+0xd4/0xd8 [ 15.370868] __kmalloc_cache_noprof+0x16c/0x3c0 [ 15.370926] kmalloc_oob_memset_4+0xb0/0x300 [ 15.370963] kunit_try_run_case+0x170/0x3f0 [ 15.371000] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 15.371053] kthread+0x328/0x630 [ 15.371086] ret_from_fork+0x10/0x20 [ 15.371123] [ 15.371144] The buggy address belongs to the object at fff00000c3fc2c00 [ 15.371144] which belongs to the cache kmalloc-128 of size 128 [ 15.371306] The buggy address is located 117 bytes inside of [ 15.371306] allocated 120-byte region [fff00000c3fc2c00, fff00000c3fc2c78) [ 15.371486] [ 15.371555] The buggy address belongs to the physical page: [ 15.371625] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fc2 [ 15.371749] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 15.371796] page_type: f5(slab) [ 15.371833] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 15.372003] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 15.372041] page dumped because: kasan: bad access detected [ 15.372071] [ 15.372089] Memory state around the buggy address: [ 15.372119] fff00000c3fc2b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 15.372161] fff00000c3fc2b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.372354] >fff00000c3fc2c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 15.372436] ^ [ 15.372553] fff00000c3fc2c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.372673] fff00000c3fc2d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.372753] ==================================================================
[ 12.389853] ================================================================== [ 12.390307] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 12.391325] Write of size 4 at addr ffff888102ad4375 by task kunit_try_catch/191 [ 12.392345] [ 12.392691] CPU: 0 UID: 0 PID: 191 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc6 #1 PREEMPT(voluntary) [ 12.392750] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.392762] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.392782] Call Trace: [ 12.392794] <TASK> [ 12.392810] dump_stack_lvl+0x73/0xb0 [ 12.392841] print_report+0xd1/0x610 [ 12.392862] ? __virt_addr_valid+0x1db/0x2d0 [ 12.392884] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.392917] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.392939] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.392960] kasan_report+0x141/0x180 [ 12.392981] ? kmalloc_oob_memset_4+0x166/0x330 [ 12.393006] kasan_check_range+0x10c/0x1c0 [ 12.393027] __asan_memset+0x27/0x50 [ 12.393045] kmalloc_oob_memset_4+0x166/0x330 [ 12.393066] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 12.393087] ? __schedule+0x10cc/0x2b60 [ 12.393109] ? __pfx_read_tsc+0x10/0x10 [ 12.393128] ? ktime_get_ts64+0x86/0x230 [ 12.393152] kunit_try_run_case+0x1a5/0x480 [ 12.393175] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.393196] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.393218] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.393240] ? __kthread_parkme+0x82/0x180 [ 12.393259] ? preempt_count_sub+0x50/0x80 [ 12.393282] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.393304] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.393325] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.393347] kthread+0x337/0x6f0 [ 12.393365] ? trace_preempt_on+0x20/0xc0 [ 12.393387] ? __pfx_kthread+0x10/0x10 [ 12.393406] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.393425] ? calculate_sigpending+0x7b/0xa0 [ 12.393448] ? __pfx_kthread+0x10/0x10 [ 12.393468] ret_from_fork+0x116/0x1d0 [ 12.393485] ? __pfx_kthread+0x10/0x10 [ 12.393504] ret_from_fork_asm+0x1a/0x30 [ 12.393534] </TASK> [ 12.393545] [ 12.406329] Allocated by task 191: [ 12.406755] kasan_save_stack+0x45/0x70 [ 12.407084] kasan_save_track+0x18/0x40 [ 12.407223] kasan_save_alloc_info+0x3b/0x50 [ 12.407472] __kasan_kmalloc+0xb7/0xc0 [ 12.407864] __kmalloc_cache_noprof+0x189/0x420 [ 12.408325] kmalloc_oob_memset_4+0xac/0x330 [ 12.408829] kunit_try_run_case+0x1a5/0x480 [ 12.409285] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.409597] kthread+0x337/0x6f0 [ 12.409748] ret_from_fork+0x116/0x1d0 [ 12.410114] ret_from_fork_asm+0x1a/0x30 [ 12.410533] [ 12.410717] The buggy address belongs to the object at ffff888102ad4300 [ 12.410717] which belongs to the cache kmalloc-128 of size 128 [ 12.411387] The buggy address is located 117 bytes inside of [ 12.411387] allocated 120-byte region [ffff888102ad4300, ffff888102ad4378) [ 12.412660] [ 12.412828] The buggy address belongs to the physical page: [ 12.413166] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102ad4 [ 12.413597] flags: 0x200000000000000(node=0|zone=2) [ 12.414135] page_type: f5(slab) [ 12.414547] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 12.415236] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 12.415963] page dumped because: kasan: bad access detected [ 12.416142] [ 12.416211] Memory state around the buggy address: [ 12.416438] ffff888102ad4200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 12.417120] ffff888102ad4280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.418015] >ffff888102ad4300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 12.418789] ^ [ 12.419026] ffff888102ad4380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.419245] ffff888102ad4400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.419487] ==================================================================