Date
July 5, 2025, 5:09 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.345325] ================================================================== [ 18.345384] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 18.345436] Write of size 4 at addr fff00000c5cbbc75 by task kunit_try_catch/174 [ 18.345492] [ 18.345526] CPU: 1 UID: 0 PID: 174 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.345604] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.345629] Hardware name: linux,dummy-virt (DT) [ 18.346039] Call trace: [ 18.346112] show_stack+0x20/0x38 (C) [ 18.346165] dump_stack_lvl+0x8c/0xd0 [ 18.346210] print_report+0x118/0x608 [ 18.346254] kasan_report+0xdc/0x128 [ 18.346297] kasan_check_range+0x100/0x1a8 [ 18.346343] __asan_memset+0x34/0x78 [ 18.346443] kmalloc_oob_memset_4+0x150/0x300 [ 18.346518] kunit_try_run_case+0x170/0x3f0 [ 18.346649] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.346703] kthread+0x328/0x630 [ 18.346874] ret_from_fork+0x10/0x20 [ 18.347111] [ 18.347249] Allocated by task 174: [ 18.347389] kasan_save_stack+0x3c/0x68 [ 18.347593] kasan_save_track+0x20/0x40 [ 18.347764] kasan_save_alloc_info+0x40/0x58 [ 18.347848] __kasan_kmalloc+0xd4/0xd8 [ 18.348039] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.348221] kmalloc_oob_memset_4+0xb0/0x300 [ 18.348258] kunit_try_run_case+0x170/0x3f0 [ 18.348593] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.348647] kthread+0x328/0x630 [ 18.349044] ret_from_fork+0x10/0x20 [ 18.349110] [ 18.349190] The buggy address belongs to the object at fff00000c5cbbc00 [ 18.349190] which belongs to the cache kmalloc-128 of size 128 [ 18.349363] The buggy address is located 117 bytes inside of [ 18.349363] allocated 120-byte region [fff00000c5cbbc00, fff00000c5cbbc78) [ 18.349672] [ 18.349941] The buggy address belongs to the physical page: [ 18.349994] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105cbb [ 18.350087] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.350156] page_type: f5(slab) [ 18.350534] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000 [ 18.350634] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 18.350761] page dumped because: kasan: bad access detected [ 18.350982] [ 18.351004] Memory state around the buggy address: [ 18.351036] fff00000c5cbbb00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 18.351206] fff00000c5cbbb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.351264] >fff00000c5cbbc00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 18.351392] ^ [ 18.351585] fff00000c5cbbc80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.351635] fff00000c5cbbd00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.352202] ==================================================================
[ 11.683581] ================================================================== [ 11.684269] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 11.684595] Write of size 4 at addr ffff8881031d4675 by task kunit_try_catch/192 [ 11.684950] [ 11.685064] CPU: 1 UID: 0 PID: 192 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.685107] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.685119] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.685140] Call Trace: [ 11.685152] <TASK> [ 11.685166] dump_stack_lvl+0x73/0xb0 [ 11.685194] print_report+0xd1/0x650 [ 11.685217] ? __virt_addr_valid+0x1db/0x2d0 [ 11.685238] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.685259] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.685282] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.685303] kasan_report+0x141/0x180 [ 11.685324] ? kmalloc_oob_memset_4+0x166/0x330 [ 11.685350] kasan_check_range+0x10c/0x1c0 [ 11.685372] __asan_memset+0x27/0x50 [ 11.685398] kmalloc_oob_memset_4+0x166/0x330 [ 11.685419] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 11.685477] ? __schedule+0x10cc/0x2b60 [ 11.685498] ? __pfx_read_tsc+0x10/0x10 [ 11.685517] ? ktime_get_ts64+0x86/0x230 [ 11.685540] kunit_try_run_case+0x1a5/0x480 [ 11.685563] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.685584] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.685606] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.685628] ? __kthread_parkme+0x82/0x180 [ 11.685646] ? preempt_count_sub+0x50/0x80 [ 11.685675] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.685708] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.685730] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.685752] kthread+0x337/0x6f0 [ 11.685771] ? trace_preempt_on+0x20/0xc0 [ 11.685793] ? __pfx_kthread+0x10/0x10 [ 11.685812] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.685832] ? calculate_sigpending+0x7b/0xa0 [ 11.685854] ? __pfx_kthread+0x10/0x10 [ 11.685875] ret_from_fork+0x116/0x1d0 [ 11.685892] ? __pfx_kthread+0x10/0x10 [ 11.685911] ret_from_fork_asm+0x1a/0x30 [ 11.685940] </TASK> [ 11.685951] [ 11.698246] Allocated by task 192: [ 11.698468] kasan_save_stack+0x45/0x70 [ 11.698859] kasan_save_track+0x18/0x40 [ 11.699047] kasan_save_alloc_info+0x3b/0x50 [ 11.699251] __kasan_kmalloc+0xb7/0xc0 [ 11.699424] __kmalloc_cache_noprof+0x189/0x420 [ 11.699649] kmalloc_oob_memset_4+0xac/0x330 [ 11.700237] kunit_try_run_case+0x1a5/0x480 [ 11.700441] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.700873] kthread+0x337/0x6f0 [ 11.701128] ret_from_fork+0x116/0x1d0 [ 11.701283] ret_from_fork_asm+0x1a/0x30 [ 11.701623] [ 11.701727] The buggy address belongs to the object at ffff8881031d4600 [ 11.701727] which belongs to the cache kmalloc-128 of size 128 [ 11.702488] The buggy address is located 117 bytes inside of [ 11.702488] allocated 120-byte region [ffff8881031d4600, ffff8881031d4678) [ 11.703260] [ 11.703351] The buggy address belongs to the physical page: [ 11.703789] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1031d4 [ 11.704223] flags: 0x200000000000000(node=0|zone=2) [ 11.704533] page_type: f5(slab) [ 11.704673] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 11.704971] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 11.705281] page dumped because: kasan: bad access detected [ 11.705769] [ 11.705857] Memory state around the buggy address: [ 11.706197] ffff8881031d4500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 11.706588] ffff8881031d4580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.706987] >ffff8881031d4600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 11.707365] ^ [ 11.707818] ffff8881031d4680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.708188] ffff8881031d4700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.708585] ==================================================================