Hay
Date
June 24, 2025, 12:47 p.m.

Environment
qemu-arm64
qemu-x86_64

[   23.227138] ==================================================================
[   23.227394] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x40c/0x488
[   23.229407] Write of size 1 at addr fff00000c3fb3d78 by task kunit_try_catch/144
[   23.229551] 
[   23.229645] CPU: 0 UID: 0 PID: 144 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc2 #1 PREEMPT 
[   23.229866] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.229941] Hardware name: linux,dummy-virt (DT)
[   23.230028] Call trace:
[   23.230095]  show_stack+0x20/0x38 (C)
[   23.230238]  dump_stack_lvl+0x8c/0xd0
[   23.230399]  print_report+0x118/0x608
[   23.230692]  kasan_report+0xdc/0x128
[   23.230815]  __asan_report_store1_noabort+0x20/0x30
[   23.230952]  kmalloc_track_caller_oob_right+0x40c/0x488
[   23.231081]  kunit_try_run_case+0x170/0x3f0
[   23.231212]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   23.231347]  kthread+0x328/0x630
[   23.231482]  ret_from_fork+0x10/0x20
[   23.231599] 
[   23.231641] Allocated by task 144:
[   23.232135]  kasan_save_stack+0x3c/0x68
[   23.232324]  kasan_save_track+0x20/0x40
[   23.232778]  kasan_save_alloc_info+0x40/0x58
[   23.233269]  __kasan_kmalloc+0xd4/0xd8
[   23.233856]  __kmalloc_node_track_caller_noprof+0x194/0x4b8
[   23.234397]  kmalloc_track_caller_oob_right+0xa8/0x488
[   23.234519]  kunit_try_run_case+0x170/0x3f0
[   23.234630]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   23.234756]  kthread+0x328/0x630
[   23.234857]  ret_from_fork+0x10/0x20
[   23.234946] 
[   23.235294] The buggy address belongs to the object at fff00000c3fb3d00
[   23.235294]  which belongs to the cache kmalloc-128 of size 128
[   23.235595] The buggy address is located 0 bytes to the right of
[   23.235595]  allocated 120-byte region [fff00000c3fb3d00, fff00000c3fb3d78)
[   23.236486] 
[   23.236549] The buggy address belongs to the physical page:
[   23.236647] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fb3
[   23.236779] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   23.237452] page_type: f5(slab)
[   23.237724] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   23.238033] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   23.238331] page dumped because: kasan: bad access detected
[   23.238685] 
[   23.238743] Memory state around the buggy address:
[   23.238829]  fff00000c3fb3c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   23.239467]  fff00000c3fb3c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.239603] >fff00000c3fb3d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   23.239704]                                                                 ^
[   23.240197]  fff00000c3fb3d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.240845]  fff00000c3fb3e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.240973] ==================================================================
[   23.243088] ==================================================================
[   23.243354] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x418/0x488
[   23.243568] Write of size 1 at addr fff00000c3fb3e78 by task kunit_try_catch/144
[   23.243708] 
[   23.243790] CPU: 0 UID: 0 PID: 144 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc2 #1 PREEMPT 
[   23.244003] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.244081] Hardware name: linux,dummy-virt (DT)
[   23.244262] Call trace:
[   23.244320]  show_stack+0x20/0x38 (C)
[   23.244476]  dump_stack_lvl+0x8c/0xd0
[   23.244590]  print_report+0x118/0x608
[   23.244698]  kasan_report+0xdc/0x128
[   23.244884]  __asan_report_store1_noabort+0x20/0x30
[   23.245236]  kmalloc_track_caller_oob_right+0x418/0x488
[   23.245425]  kunit_try_run_case+0x170/0x3f0
[   23.245550]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   23.245692]  kthread+0x328/0x630
[   23.245986]  ret_from_fork+0x10/0x20
[   23.246107] 
[   23.246151] Allocated by task 144:
[   23.246271]  kasan_save_stack+0x3c/0x68
[   23.246367]  kasan_save_track+0x20/0x40
[   23.246489]  kasan_save_alloc_info+0x40/0x58
[   23.246599]  __kasan_kmalloc+0xd4/0xd8
[   23.246705]  __kmalloc_node_track_caller_noprof+0x194/0x4b8
[   23.246844]  kmalloc_track_caller_oob_right+0x184/0x488
[   23.246990]  kunit_try_run_case+0x170/0x3f0
[   23.247101]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   23.247224]  kthread+0x328/0x630
[   23.247393]  ret_from_fork+0x10/0x20
[   23.247512] 
[   23.247562] The buggy address belongs to the object at fff00000c3fb3e00
[   23.247562]  which belongs to the cache kmalloc-128 of size 128
[   23.247815] The buggy address is located 0 bytes to the right of
[   23.247815]  allocated 120-byte region [fff00000c3fb3e00, fff00000c3fb3e78)
[   23.248013] 
[   23.248061] The buggy address belongs to the physical page:
[   23.248151] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103fb3
[   23.248290] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   23.248476] page_type: f5(slab)
[   23.248574] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   23.248860] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   23.249001] page dumped because: kasan: bad access detected
[   23.249126] 
[   23.249183] Memory state around the buggy address:
[   23.249524]  fff00000c3fb3d00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   23.249697]  fff00000c3fb3d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.249809] >fff00000c3fb3e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   23.249930]                                                                 ^
[   23.250037]  fff00000c3fb3e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.250211]  fff00000c3fb3f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   23.250948] ==================================================================

[   10.971702] ==================================================================
[   10.972158] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.973106] Write of size 1 at addr ffff8881029d0f78 by task kunit_try_catch/162
[   10.973990] 
[   10.974156] CPU: 1 UID: 0 PID: 162 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc2 #1 PREEMPT(voluntary) 
[   10.974240] Tainted: [B]=BAD_PAGE, [N]=TEST
[   10.974259] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   10.974295] Call Trace:
[   10.974316]  <TASK>
[   10.974347]  dump_stack_lvl+0x73/0xb0
[   10.974407]  print_report+0xd1/0x650
[   10.974448]  ? __virt_addr_valid+0x1db/0x2d0
[   10.975066]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.975111]  ? kasan_complete_mode_report_info+0x2a/0x200
[   10.975133]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.975152]  kasan_report+0x141/0x180
[   10.975175]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.975198]  __asan_report_store1_noabort+0x1b/0x30
[   10.975217]  kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.975236]  ? __pfx_kmalloc_track_caller_oob_right+0x10/0x10
[   10.975256]  ? __schedule+0x10cc/0x2b60
[   10.975280]  ? __pfx_read_tsc+0x10/0x10
[   10.975311]  ? ktime_get_ts64+0x86/0x230
[   10.975350]  kunit_try_run_case+0x1a5/0x480
[   10.975387]  ? __pfx_kunit_try_run_case+0x10/0x10
[   10.975416]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   10.975448]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   10.975480]  ? __kthread_parkme+0x82/0x180
[   10.975513]  ? preempt_count_sub+0x50/0x80
[   10.975546]  ? __pfx_kunit_try_run_case+0x10/0x10
[   10.975578]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   10.975611]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   10.975658]  kthread+0x337/0x6f0
[   10.975685]  ? trace_preempt_on+0x20/0xc0
[   10.975718]  ? __pfx_kthread+0x10/0x10
[   10.975735]  ? _raw_spin_unlock_irq+0x47/0x80
[   10.975756]  ? calculate_sigpending+0x7b/0xa0
[   10.975777]  ? __pfx_kthread+0x10/0x10
[   10.975794]  ret_from_fork+0x41/0x80
[   10.975814]  ? __pfx_kthread+0x10/0x10
[   10.975831]  ret_from_fork_asm+0x1a/0x30
[   10.975861]  </TASK>
[   10.975875] 
[   10.986794] Allocated by task 162:
[   10.987049]  kasan_save_stack+0x45/0x70
[   10.987399]  kasan_save_track+0x18/0x40
[   10.987733]  kasan_save_alloc_info+0x3b/0x50
[   10.988692]  __kasan_kmalloc+0xb7/0xc0
[   10.988898]  __kmalloc_node_track_caller_noprof+0x1cb/0x500
[   10.989110]  kmalloc_track_caller_oob_right+0x99/0x520
[   10.989301]  kunit_try_run_case+0x1a5/0x480
[   10.989479]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   10.989805]  kthread+0x337/0x6f0
[   10.990141]  ret_from_fork+0x41/0x80
[   10.990424]  ret_from_fork_asm+0x1a/0x30
[   10.990744] 
[   10.990905] The buggy address belongs to the object at ffff8881029d0f00
[   10.990905]  which belongs to the cache kmalloc-128 of size 128
[   10.991717] The buggy address is located 0 bytes to the right of
[   10.991717]  allocated 120-byte region [ffff8881029d0f00, ffff8881029d0f78)
[   10.993149] 
[   10.993660] The buggy address belongs to the physical page:
[   10.994487] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029d0
[   10.994778] flags: 0x200000000000000(node=0|zone=2)
[   10.995418] page_type: f5(slab)
[   10.995802] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   10.996045] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   10.996540] page dumped because: kasan: bad access detected
[   10.997557] 
[   10.997717] Memory state around the buggy address:
[   10.998124]  ffff8881029d0e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   10.998750]  ffff8881029d0e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   10.999047] >ffff8881029d0f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   10.999497]                                                                 ^
[   10.999856]  ffff8881029d0f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.000249]  ffff8881029d1000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   11.000618] ==================================================================
[   11.002991] ==================================================================
[   11.003943] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x4b1/0x520
[   11.004684] Write of size 1 at addr ffff8881029da078 by task kunit_try_catch/162
[   11.004830] 
[   11.004910] CPU: 1 UID: 0 PID: 162 Comm: kunit_try_catch Tainted: G    B            N  6.15.4-rc2 #1 PREEMPT(voluntary) 
[   11.004964] Tainted: [B]=BAD_PAGE, [N]=TEST
[   11.004975] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   11.004998] Call Trace:
[   11.005013]  <TASK>
[   11.005034]  dump_stack_lvl+0x73/0xb0
[   11.005066]  print_report+0xd1/0x650
[   11.005090]  ? __virt_addr_valid+0x1db/0x2d0
[   11.005111]  ? kmalloc_track_caller_oob_right+0x4b1/0x520
[   11.005130]  ? kasan_complete_mode_report_info+0x2a/0x200
[   11.005150]  ? kmalloc_track_caller_oob_right+0x4b1/0x520
[   11.005169]  kasan_report+0x141/0x180
[   11.005189]  ? kmalloc_track_caller_oob_right+0x4b1/0x520
[   11.005212]  __asan_report_store1_noabort+0x1b/0x30
[   11.005231]  kmalloc_track_caller_oob_right+0x4b1/0x520
[   11.005250]  ? __pfx_kmalloc_track_caller_oob_right+0x10/0x10
[   11.005270]  ? __schedule+0x10cc/0x2b60
[   11.005311]  ? __pfx_read_tsc+0x10/0x10
[   11.005340]  ? ktime_get_ts64+0x86/0x230
[   11.005379]  kunit_try_run_case+0x1a5/0x480
[   11.005415]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.005446]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   11.005484]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   11.005523]  ? __kthread_parkme+0x82/0x180
[   11.006005]  ? preempt_count_sub+0x50/0x80
[   11.006106]  ? __pfx_kunit_try_run_case+0x10/0x10
[   11.006159]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.006203]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   11.006238]  kthread+0x337/0x6f0
[   11.006256]  ? trace_preempt_on+0x20/0xc0
[   11.006312]  ? __pfx_kthread+0x10/0x10
[   11.006348]  ? _raw_spin_unlock_irq+0x47/0x80
[   11.006381]  ? calculate_sigpending+0x7b/0xa0
[   11.006411]  ? __pfx_kthread+0x10/0x10
[   11.006438]  ret_from_fork+0x41/0x80
[   11.006466]  ? __pfx_kthread+0x10/0x10
[   11.006491]  ret_from_fork_asm+0x1a/0x30
[   11.006534]  </TASK>
[   11.006565] 
[   11.019243] Allocated by task 162:
[   11.019582]  kasan_save_stack+0x45/0x70
[   11.019812]  kasan_save_track+0x18/0x40
[   11.020095]  kasan_save_alloc_info+0x3b/0x50
[   11.020317]  __kasan_kmalloc+0xb7/0xc0
[   11.020600]  __kmalloc_node_track_caller_noprof+0x1cb/0x500
[   11.020885]  kmalloc_track_caller_oob_right+0x19a/0x520
[   11.021132]  kunit_try_run_case+0x1a5/0x480
[   11.021375]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   11.021687]  kthread+0x337/0x6f0
[   11.022102]  ret_from_fork+0x41/0x80
[   11.022814]  ret_from_fork_asm+0x1a/0x30
[   11.023337] 
[   11.023682] The buggy address belongs to the object at ffff8881029da000
[   11.023682]  which belongs to the cache kmalloc-128 of size 128
[   11.024711] The buggy address is located 0 bytes to the right of
[   11.024711]  allocated 120-byte region [ffff8881029da000, ffff8881029da078)
[   11.025273] 
[   11.025469] The buggy address belongs to the physical page:
[   11.026205] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029da
[   11.026711] flags: 0x200000000000000(node=0|zone=2)
[   11.026976] page_type: f5(slab)
[   11.027732] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   11.028786] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   11.028979] page dumped because: kasan: bad access detected
[   11.029079] 
[   11.029127] Memory state around the buggy address:
[   11.029219]  ffff8881029d9f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.029334]  ffff8881029d9f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.029447] >ffff8881029da000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   11.029558]                                                                 ^
[   11.030085]  ffff8881029da080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.030888]  ffff8881029da100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   11.031335] ==================================================================