Date
July 22, 2025, 5:13 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 30.383060] ================================================================== [ 30.383117] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x150/0x300 [ 30.383169] Write of size 4 at addr fff00000c3f71c75 by task kunit_try_catch/205 [ 30.383222] [ 30.383253] CPU: 1 UID: 0 PID: 205 Comm: kunit_try_catch Tainted: G B W N 6.16.0-rc7-next-20250722 #1 PREEMPT [ 30.383340] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST [ 30.383368] Hardware name: linux,dummy-virt (DT) [ 30.383407] Call trace: [ 30.383428] show_stack+0x20/0x38 (C) [ 30.383476] dump_stack_lvl+0x8c/0xd0 [ 30.383520] print_report+0x118/0x5e8 [ 30.383562] kasan_report+0xdc/0x128 [ 30.383604] kasan_check_range+0x100/0x1a8 [ 30.383656] __asan_memset+0x34/0x78 [ 30.383700] kmalloc_oob_memset_4+0x150/0x300 [ 30.383745] kunit_try_run_case+0x170/0x3f0 [ 30.383800] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.384197] kthread+0x328/0x630 [ 30.384728] ret_from_fork+0x10/0x20 [ 30.384808] [ 30.385220] Allocated by task 205: [ 30.385259] kasan_save_stack+0x3c/0x68 [ 30.385306] kasan_save_track+0x20/0x40 [ 30.385340] kasan_save_alloc_info+0x40/0x58 [ 30.385377] __kasan_kmalloc+0xd4/0xd8 [ 30.385443] __kmalloc_cache_noprof+0x16c/0x3c0 [ 30.385508] kmalloc_oob_memset_4+0xb0/0x300 [ 30.385573] kunit_try_run_case+0x170/0x3f0 [ 30.385844] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 30.385971] kthread+0x328/0x630 [ 30.386049] ret_from_fork+0x10/0x20 [ 30.386381] [ 30.386438] The buggy address belongs to the object at fff00000c3f71c00 [ 30.386438] which belongs to the cache kmalloc-128 of size 128 [ 30.386506] The buggy address is located 117 bytes inside of [ 30.386506] allocated 120-byte region [fff00000c3f71c00, fff00000c3f71c78) [ 30.386567] [ 30.386744] The buggy address belongs to the physical page: [ 30.386893] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103f71 [ 30.387007] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 30.387097] page_type: f5(slab) [ 30.387233] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000100 dead000000000122 [ 30.387295] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 30.387349] page dumped because: kasan: bad access detected [ 30.387726] [ 30.387769] Memory state around the buggy address: [ 30.387803] fff00000c3f71b00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 30.388132] fff00000c3f71b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.388240] >fff00000c3f71c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 30.388280] ^ [ 30.388349] fff00000c3f71c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.388417] fff00000c3f71d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 30.388892] ==================================================================
[ 25.217585] ================================================================== [ 25.218170] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_memset_4+0x166/0x330 [ 25.218406] Write of size 4 at addr ffff888104962f75 by task kunit_try_catch/222 [ 25.219114] [ 25.219313] CPU: 0 UID: 0 PID: 222 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc7-next-20250722 #1 PREEMPT(voluntary) [ 25.219364] Tainted: [B]=BAD_PAGE, [N]=TEST [ 25.219606] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 25.219660] Call Trace: [ 25.219675] <TASK> [ 25.219690] dump_stack_lvl+0x73/0xb0 [ 25.219865] print_report+0xd1/0x640 [ 25.219889] ? __virt_addr_valid+0x1db/0x2d0 [ 25.219914] ? kmalloc_oob_memset_4+0x166/0x330 [ 25.219935] ? kasan_complete_mode_report_info+0x2a/0x200 [ 25.219962] ? kmalloc_oob_memset_4+0x166/0x330 [ 25.219984] kasan_report+0x141/0x180 [ 25.220007] ? kmalloc_oob_memset_4+0x166/0x330 [ 25.220033] kasan_check_range+0x10c/0x1c0 [ 25.220059] __asan_memset+0x27/0x50 [ 25.220083] kmalloc_oob_memset_4+0x166/0x330 [ 25.220107] ? __pfx_kmalloc_oob_memset_4+0x10/0x10 [ 25.220130] ? __schedule+0x10da/0x2b60 [ 25.220155] ? __pfx_read_tsc+0x10/0x10 [ 25.220244] ? ktime_get_ts64+0x86/0x230 [ 25.220268] kunit_try_run_case+0x1a5/0x480 [ 25.220294] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.220317] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 25.220342] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 25.220367] ? __kthread_parkme+0x82/0x180 [ 25.220388] ? preempt_count_sub+0x50/0x80 [ 25.220411] ? __pfx_kunit_try_run_case+0x10/0x10 [ 25.220434] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.220526] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 25.220554] kthread+0x337/0x6f0 [ 25.220574] ? trace_preempt_on+0x20/0xc0 [ 25.220597] ? __pfx_kthread+0x10/0x10 [ 25.220618] ? _raw_spin_unlock_irq+0x47/0x80 [ 25.220641] ? calculate_sigpending+0x7b/0xa0 [ 25.220664] ? __pfx_kthread+0x10/0x10 [ 25.220686] ret_from_fork+0x116/0x1d0 [ 25.220706] ? __pfx_kthread+0x10/0x10 [ 25.220727] ret_from_fork_asm+0x1a/0x30 [ 25.220757] </TASK> [ 25.220769] [ 25.232329] Allocated by task 222: [ 25.232701] kasan_save_stack+0x45/0x70 [ 25.232962] kasan_save_track+0x18/0x40 [ 25.233151] kasan_save_alloc_info+0x3b/0x50 [ 25.233710] __kasan_kmalloc+0xb7/0xc0 [ 25.234049] __kmalloc_cache_noprof+0x189/0x420 [ 25.234407] kmalloc_oob_memset_4+0xac/0x330 [ 25.234878] kunit_try_run_case+0x1a5/0x480 [ 25.235098] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 25.235525] kthread+0x337/0x6f0 [ 25.235845] ret_from_fork+0x116/0x1d0 [ 25.236028] ret_from_fork_asm+0x1a/0x30 [ 25.236362] [ 25.236456] The buggy address belongs to the object at ffff888104962f00 [ 25.236456] which belongs to the cache kmalloc-128 of size 128 [ 25.237021] The buggy address is located 117 bytes inside of [ 25.237021] allocated 120-byte region [ffff888104962f00, ffff888104962f78) [ 25.237973] [ 25.238070] The buggy address belongs to the physical page: [ 25.238342] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104962 [ 25.238893] flags: 0x200000000000000(node=0|zone=2) [ 25.239124] page_type: f5(slab) [ 25.239596] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000 [ 25.240024] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000 [ 25.240444] page dumped because: kasan: bad access detected [ 25.240694] [ 25.240790] Memory state around the buggy address: [ 25.241279] ffff888104962e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.241734] ffff888104962e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.242065] >ffff888104962f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc [ 25.242681] ^ [ 25.242962] ffff888104962f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 25.243558] ffff888104963000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 25.243963] ==================================================================