Hay
Date
July 1, 2025, 3:08 p.m.

Environment
qemu-arm64
qemu-x86_64

[   16.994246] ==================================================================
[   16.994312] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x144/0x2d0
[   16.994371] Write of size 128 at addr fff00000c5733600 by task kunit_try_catch/171
[   16.994421] 
[   16.994456] CPU: 1 UID: 0 PID: 171 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4 #1 PREEMPT 
[   16.994557] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.994678] Hardware name: linux,dummy-virt (DT)
[   16.994761] Call trace:
[   16.994784]  show_stack+0x20/0x38 (C)
[   16.994834]  dump_stack_lvl+0x8c/0xd0
[   16.994882]  print_report+0x118/0x608
[   16.994927]  kasan_report+0xdc/0x128
[   16.994971]  kasan_check_range+0x100/0x1a8
[   16.995017]  __asan_memset+0x34/0x78
[   16.995058]  kmalloc_oob_in_memset+0x144/0x2d0
[   16.995103]  kunit_try_run_case+0x170/0x3f0
[   16.995149]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.995210]  kthread+0x328/0x630
[   16.995252]  ret_from_fork+0x10/0x20
[   16.995299] 
[   16.995317] Allocated by task 171:
[   16.995344]  kasan_save_stack+0x3c/0x68
[   16.995384]  kasan_save_track+0x20/0x40
[   16.995420]  kasan_save_alloc_info+0x40/0x58
[   16.995459]  __kasan_kmalloc+0xd4/0xd8
[   16.995495]  __kmalloc_cache_noprof+0x16c/0x3c0
[   16.995533]  kmalloc_oob_in_memset+0xb0/0x2d0
[   16.995579]  kunit_try_run_case+0x170/0x3f0
[   16.995638]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.995781]  kthread+0x328/0x630
[   16.995841]  ret_from_fork+0x10/0x20
[   16.995942] 
[   16.995960] The buggy address belongs to the object at fff00000c5733600
[   16.995960]  which belongs to the cache kmalloc-128 of size 128
[   16.996018] The buggy address is located 0 bytes inside of
[   16.996018]  allocated 120-byte region [fff00000c5733600, fff00000c5733678)
[   16.996080] 
[   16.996100] The buggy address belongs to the physical page:
[   16.996132] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105733
[   16.996186] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   16.996236] page_type: f5(slab)
[   16.996337] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   16.996392] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.996438] page dumped because: kasan: bad access detected
[   16.996495] 
[   16.996524] Memory state around the buggy address:
[   16.996701]  fff00000c5733500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.996769]  fff00000c5733580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.996812] >fff00000c5733600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.996850]                                                                 ^
[   16.996898]  fff00000c5733680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.996993]  fff00000c5733700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.997031] ==================================================================

[   11.625573] ==================================================================
[   11.626219] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_in_memset+0x15f/0x320
[   11.626469] Write of size 128 at addr ffff8881033ae000 by task kunit_try_catch/187
[   11.626876] 
[   11.627088] CPU: 0 UID: 0 PID: 187 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4 #1 PREEMPT(voluntary) 
[   11.627166] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.627178] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.627200] Call Trace:
[   11.627212]  <TASK>
[   11.627234]  dump_stack_lvl+0x73/0xb0
[   11.627265]  print_report+0xd1/0x650
[   11.627288]  ? __virt_addr_valid+0x1db/0x2d0
[   11.627312]  ? kmalloc_oob_in_memset+0x15f/0x320
[   11.627333]  ? kasan_complete_mode_report_info+0x2a/0x200
[   11.627353]  ? kmalloc_oob_in_memset+0x15f/0x320
[   11.627374]  kasan_report+0x141/0x180
[   11.627395]  ? kmalloc_oob_in_memset+0x15f/0x320
[   11.627420]  kasan_check_range+0x10c/0x1c0
[   11.627443]  __asan_memset+0x27/0x50
[   11.627461]  kmalloc_oob_in_memset+0x15f/0x320
[   11.627482]  ? __pfx_kmalloc_oob_in_memset+0x10/0x10
[   11.627503]  ? __schedule+0x10cc/0x2b60
[   11.627524]  ? __pfx_read_tsc+0x10/0x10
[   11.627545]  ? ktime_get_ts64+0x86/0x230
[   11.627569]  kunit_try_run_case+0x1a5/0x480
[   11.627592]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.627612]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.627663]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.627685]  ? __kthread_parkme+0x82/0x180
[   11.627716]  ? preempt_count_sub+0x50/0x80
[   11.627752]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.627774]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.627796]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.627819]  kthread+0x337/0x6f0
[   11.627837]  ? trace_preempt_on+0x20/0xc0
[   11.627859]  ? __pfx_kthread+0x10/0x10
[   11.627878]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.627898]  ? calculate_sigpending+0x7b/0xa0
[   11.627920]  ? __pfx_kthread+0x10/0x10
[   11.627940]  ret_from_fork+0x116/0x1d0
[   11.627958]  ? __pfx_kthread+0x10/0x10
[   11.627976]  ret_from_fork_asm+0x1a/0x30
[   11.628006]  </TASK>
[   11.628018] 
[   11.639846] Allocated by task 187:
[   11.640233]  kasan_save_stack+0x45/0x70
[   11.640726]  kasan_save_track+0x18/0x40
[   11.641106]  kasan_save_alloc_info+0x3b/0x50
[   11.641524]  __kasan_kmalloc+0xb7/0xc0
[   11.641955]  __kmalloc_cache_noprof+0x189/0x420
[   11.642516]  kmalloc_oob_in_memset+0xac/0x320
[   11.642965]  kunit_try_run_case+0x1a5/0x480
[   11.643371]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.643984]  kthread+0x337/0x6f0
[   11.644368]  ret_from_fork+0x116/0x1d0
[   11.644764]  ret_from_fork_asm+0x1a/0x30
[   11.645220] 
[   11.645411] The buggy address belongs to the object at ffff8881033ae000
[   11.645411]  which belongs to the cache kmalloc-128 of size 128
[   11.646597] The buggy address is located 0 bytes inside of
[   11.646597]  allocated 120-byte region [ffff8881033ae000, ffff8881033ae078)
[   11.647927] 
[   11.648111] The buggy address belongs to the physical page:
[   11.648689] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1033ae
[   11.649430] flags: 0x200000000000000(node=0|zone=2)
[   11.649983] page_type: f5(slab)
[   11.650146] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   11.650864] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   11.651624] page dumped because: kasan: bad access detected
[   11.651916] 
[   11.652099] Memory state around the buggy address:
[   11.652571]  ffff8881033adf00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.653233]  ffff8881033adf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.653855] >ffff8881033ae000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   11.654138]                                                                 ^
[   11.654807]  ffff8881033ae080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.655423]  ffff8881033ae100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.655650] ==================================================================