Hay
Sign in
Date
July 3, 2025, 10:10 a.m.

Environment
dragonboard-845c
qemu-arm64
qemu-x86_64 

[   31.437944] ==================================================================
[   31.449083] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320
[   31.456058] Read of size 1 at addr ffff00009819015f by task kunit_try_catch/247
[   31.463465] 
[   31.465008] CPU: 3 UID: 0 PID: 247 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250703 #1 PREEMPT 
[   31.465040] Tainted: [B]=BAD_PAGE, [N]=TEST
[   31.465049] Hardware name: Thundercomm Dragonboard 845c (DT)
[   31.465062] Call trace:
[   31.465069]  show_stack+0x20/0x38 (C)
[   31.465090]  dump_stack_lvl+0x8c/0xd0
[   31.465112]  print_report+0x118/0x608
[   31.465132]  kasan_report+0xdc/0x128
[   31.465149]  __asan_report_load1_noabort+0x20/0x30
[   31.465168]  kmalloc_oob_left+0x2ec/0x320
[   31.465184]  kunit_try_run_case+0x170/0x3f0
[   31.465205]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.465227]  kthread+0x328/0x630
[   31.465245]  ret_from_fork+0x10/0x20
[   31.465263] 
[   31.530794] Allocated by task 180:
[   31.534256]  kasan_save_stack+0x3c/0x68
[   31.538169]  kasan_save_track+0x20/0x40
[   31.542079]  kasan_save_alloc_info+0x40/0x58
[   31.546418]  __kasan_kmalloc+0xd4/0xd8
[   31.550241]  __kmalloc_noprof+0x198/0x4c8
[   31.554325]  kunit_kmalloc_array+0x34/0x88
[   31.558495]  test_readerwriter+0x3b0/0x948
[   31.562668]  kunit_try_run_case+0x170/0x3f0
[   31.566922]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.572491]  kthread+0x328/0x630
[   31.575785]  ret_from_fork+0x10/0x20
[   31.579426] 
[   31.580963] Freed by task 190:
[   31.584079]  kasan_save_stack+0x3c/0x68
[   31.587985]  kasan_save_track+0x20/0x40
[   31.591894]  kasan_save_free_info+0x4c/0x78
[   31.596145]  __kasan_slab_free+0x6c/0x98
[   31.600142]  kfree+0x214/0x3c8
[   31.603255]  kfree_action_wrapper+0x18/0x30
[   31.607508]  __kunit_action_free+0x58/0x80
[   31.611673]  kunit_remove_resource+0x14c/0x1f8
[   31.616194]  kunit_cleanup+0x6c/0x108
[   31.619929]  kunit_try_run_case_cleanup+0xa4/0xe0
[   31.624713]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   31.630287]  kthread+0x328/0x630
[   31.633578]  ret_from_fork+0x10/0x20
[   31.637215] 
[   31.638746] The buggy address belongs to the object at ffff000098190140
[   31.638746]  which belongs to the cache kmalloc-16 of size 16
[   31.651237] The buggy address is located 15 bytes to the right of
[   31.651237]  allocated 16-byte region [ffff000098190140, ffff000098190150)
[   31.664341] 
[   31.665874] The buggy address belongs to the physical page:
[   31.671521] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x118190
[   31.679633] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   31.686250] page_type: f5(slab)
[   31.689457] raw: 0bfffe0000000000 ffff000080002640 dead000000000122 0000000000000000
[   31.697301] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   31.705141] page dumped because: kasan: bad access detected
[   31.710790] 
[   31.712325] Memory state around the buggy address:
[   31.717189]  ffff000098190000: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   31.724514]  ffff000098190080: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   31.731838] >ffff000098190100: fa fb fc fc fa fb fc fc fa fb fc fc 00 07 fc fc
[   31.739150]                                                     ^
[   31.745327]  ffff000098190180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   31.752651]  ffff000098190200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   31.759972] ==================================================================
Metadata Full log Test run details 

[   30.674029] ==================================================================
[   30.674092] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320
[   30.674492] Read of size 1 at addr fff00000c5a30c1f by task kunit_try_catch/170
[   30.674562] 
[   30.674598] CPU: 0 UID: 0 PID: 170 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250703 #1 PREEMPT 
[   30.674685] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.674946] Hardware name: linux,dummy-virt (DT)
[   30.675189] Call trace:
[   30.675302]  show_stack+0x20/0x38 (C)
[   30.675368]  dump_stack_lvl+0x8c/0xd0
[   30.675580]  print_report+0x118/0x608
[   30.675750]  kasan_report+0xdc/0x128
[   30.675805]  __asan_report_load1_noabort+0x20/0x30
[   30.675866]  kmalloc_oob_left+0x2ec/0x320
[   30.675912]  kunit_try_run_case+0x170/0x3f0
[   30.675962]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.676016]  kthread+0x328/0x630
[   30.676296]  ret_from_fork+0x10/0x20
[   30.676645] 
[   30.676892] Allocated by task 10:
[   30.676956]  kasan_save_stack+0x3c/0x68
[   30.677066]  kasan_save_track+0x20/0x40
[   30.677189]  kasan_save_alloc_info+0x40/0x58
[   30.677231]  __kasan_kmalloc+0xd4/0xd8
[   30.677548]  __kmalloc_node_track_caller_noprof+0x194/0x4b8
[   30.677624]  kvasprintf+0xe0/0x180
[   30.677708]  __kthread_create_on_node+0x16c/0x350
[   30.677751]  kthread_create_on_node+0xe4/0x130
[   30.677970]  create_worker+0x380/0x6b8
[   30.678171]  worker_thread+0x808/0xf38
[   30.678236]  kthread+0x328/0x630
[   30.678599]  ret_from_fork+0x10/0x20
[   30.678775] 
[   30.678900] The buggy address belongs to the object at fff00000c5a30c00
[   30.678900]  which belongs to the cache kmalloc-16 of size 16
[   30.678977] The buggy address is located 19 bytes to the right of
[   30.678977]  allocated 12-byte region [fff00000c5a30c00, fff00000c5a30c0c)
[   30.679209] 
[   30.679416] The buggy address belongs to the physical page:
[   30.679476] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xfff00000c5a30be0 pfn:0x105a30
[   30.679891] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   30.679973] page_type: f5(slab)
[   30.680173] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000
[   30.680398] raw: fff00000c5a30be0 000000008080007f 00000000f5000000 0000000000000000
[   30.680559] page dumped because: kasan: bad access detected
[   30.680674] 
[   30.680812] Memory state around the buggy address:
[   30.681017]  fff00000c5a30b00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   30.681120]  fff00000c5a30b80: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   30.681238] >fff00000c5a30c00: 00 04 fc fc 00 07 fc fc fc fc fc fc fc fc fc fc
[   30.681568]                             ^
[   30.681639]  fff00000c5a30c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.681848]  fff00000c5a30d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   30.682015] ==================================================================
Metadata Full log Test run details 

[   22.494049] ==================================================================
[   22.494709] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0
[   22.494943] Read of size 1 at addr ffff888104b06dff by task kunit_try_catch/187
[   22.495159] 
[   22.495255] CPU: 0 UID: 0 PID: 187 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc4-next-20250703 #1 PREEMPT(voluntary) 
[   22.495304] Tainted: [B]=BAD_PAGE, [N]=TEST
[   22.495316] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   22.495338] Call Trace:
[   22.495351]  <TASK>
[   22.495368]  dump_stack_lvl+0x73/0xb0
[   22.495396]  print_report+0xd1/0x650
[   22.495418]  ? __virt_addr_valid+0x1db/0x2d0
[   22.495441]  ? kmalloc_oob_left+0x361/0x3c0
[   22.495473]  ? kasan_complete_mode_report_info+0x64/0x200
[   22.495498]  ? kmalloc_oob_left+0x361/0x3c0
[   22.495518]  kasan_report+0x141/0x180
[   22.495539]  ? kmalloc_oob_left+0x361/0x3c0
[   22.495565]  __asan_report_load1_noabort+0x18/0x20
[   22.495588]  kmalloc_oob_left+0x361/0x3c0
[   22.495609]  ? __pfx_kmalloc_oob_left+0x10/0x10
[   22.495630]  ? __schedule+0x10cc/0x2b60
[   22.495654]  ? __pfx_read_tsc+0x10/0x10
[   22.495675]  ? ktime_get_ts64+0x86/0x230
[   22.495700]  kunit_try_run_case+0x1a5/0x480
[   22.495725]  ? __pfx_kunit_try_run_case+0x10/0x10
[   22.495747]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   22.495768]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   22.495793]  ? __kthread_parkme+0x82/0x180
[   22.495813]  ? preempt_count_sub+0x50/0x80
[   22.495836]  ? __pfx_kunit_try_run_case+0x10/0x10
[   22.495860]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   22.495882]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   22.495905]  kthread+0x337/0x6f0
[   22.495924]  ? trace_preempt_on+0x20/0xc0
[   22.495947]  ? __pfx_kthread+0x10/0x10
[   22.495967]  ? _raw_spin_unlock_irq+0x47/0x80
[   22.495990]  ? calculate_sigpending+0x7b/0xa0
[   22.496013]  ? __pfx_kthread+0x10/0x10
[   22.496034]  ret_from_fork+0x116/0x1d0
[   22.496501]  ? __pfx_kthread+0x10/0x10
[   22.496532]  ret_from_fork_asm+0x1a/0x30
[   22.496566]  </TASK>
[   22.496578] 
[   22.511670] Allocated by task 26:
[   22.511821]  kasan_save_stack+0x45/0x70
[   22.511962]  kasan_save_track+0x18/0x40
[   22.512086]  kasan_save_alloc_info+0x3b/0x50
[   22.512571]  __kasan_kmalloc+0xb7/0xc0
[   22.512947]  __kmalloc_node_track_caller_noprof+0x1cb/0x500
[   22.513535]  kstrdup+0x3e/0xa0
[   22.513949]  devtmpfs_work_loop+0x96d/0xf30
[   22.514392]  devtmpfsd+0x3b/0x40
[   22.514525]  kthread+0x337/0x6f0
[   22.514636]  ret_from_fork+0x116/0x1d0
[   22.514757]  ret_from_fork_asm+0x1a/0x30
[   22.514885] 
[   22.514972] Freed by task 26:
[   22.515092]  kasan_save_stack+0x45/0x70
[   22.515672]  kasan_save_track+0x18/0x40
[   22.516018]  kasan_save_free_info+0x3f/0x60
[   22.516574]  __kasan_slab_free+0x56/0x70
[   22.517088]  kfree+0x222/0x3f0
[   22.517471]  devtmpfs_work_loop+0xacb/0xf30
[   22.517883]  devtmpfsd+0x3b/0x40
[   22.518282]  kthread+0x337/0x6f0
[   22.518624]  ret_from_fork+0x116/0x1d0
[   22.518984]  ret_from_fork_asm+0x1a/0x30
[   22.519419] 
[   22.519816] The buggy address belongs to the object at ffff888104b06de0
[   22.519816]  which belongs to the cache kmalloc-16 of size 16
[   22.520697] The buggy address is located 15 bytes to the right of
[   22.520697]  allocated 16-byte region [ffff888104b06de0, ffff888104b06df0)
[   22.521056] 
[   22.521124] The buggy address belongs to the physical page:
[   22.521828] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104b06
[   22.522608] flags: 0x200000000000000(node=0|zone=2)
[   22.523344] page_type: f5(slab)
[   22.523704] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000
[   22.524075] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   22.524579] page dumped because: kasan: bad access detected
[   22.525077] 
[   22.525261] Memory state around the buggy address:
[   22.525807]  ffff888104b06c80: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   22.526083]  ffff888104b06d00: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc
[   22.526715] >ffff888104b06d80: fa fb fc fc fa fb fc fc 00 04 fc fc fa fb fc fc
[   22.527563]                                                                 ^
[   22.527915]  ffff888104b06e00: 00 07 fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.528121]  ffff888104b06e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   22.528847] ==================================================================
Metadata Full log Test run details