Hay
Date
June 7, 2025, 10:40 a.m.

Environment
qemu-arm64
qemu-x86_64

[   25.318495] ==================================================================
[   25.318930] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x238/0x270
[   25.319547] Read of size 1 at addr ffff8000809c7c2a by task kunit_try_catch/253
[   25.319711] 
[   25.319810] CPU: 1 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G    B            N  6.15.2-rc1 #1 PREEMPT 
[   25.320073] Tainted: [B]=BAD_PAGE, [N]=TEST
[   25.320176] Hardware name: linux,dummy-virt (DT)
[   25.320371] Call trace:
[   25.320720]  show_stack+0x20/0x38 (C)
[   25.321096]  dump_stack_lvl+0x8c/0xd0
[   25.321309]  print_report+0x310/0x608
[   25.321540]  kasan_report+0xdc/0x128
[   25.321841]  __asan_report_load1_noabort+0x20/0x30
[   25.321966]  kasan_stack_oob+0x238/0x270
[   25.322083]  kunit_try_run_case+0x170/0x3f0
[   25.322542]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   25.322746]  kthread+0x328/0x630
[   25.322857]  ret_from_fork+0x10/0x20
[   25.323127] 
[   25.323480] The buggy address belongs to stack of task kunit_try_catch/253
[   25.324015]  and is located at offset 138 in frame:
[   25.324436]  kasan_stack_oob+0x0/0x270
[   25.325015] 
[   25.325092] This frame has 4 objects:
[   25.325843]  [48, 49) '__assertion'
[   25.326101]  [64, 72) 'array'
[   25.326344]  [96, 112) '__assertion'
[   25.326558]  [128, 138) 'stack_array'
[   25.326657] 
[   25.326734] The buggy address belongs to the virtual mapping at
[   25.326734]  [ffff8000809c0000, ffff8000809c9000) created by:
[   25.326734]  kernel_clone+0x150/0x7a8
[   25.326940] 
[   25.327001] The buggy address belongs to the physical page:
[   25.327721] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1063be
[   25.328504] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   25.328764] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   25.328946] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   25.329078] page dumped because: kasan: bad access detected
[   25.329158] 
[   25.329215] Memory state around the buggy address:
[   25.329328]  ffff8000809c7b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   25.329516]  ffff8000809c7b80: 00 00 00 00 f1 f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2
[   25.330100] >ffff8000809c7c00: 00 00 f2 f2 00 02 f3 f3 00 00 00 00 00 00 00 00
[   25.330354]                                   ^
[   25.330463]  ffff8000809c7c80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 f2 f2
[   25.330961]  ffff8000809c7d00: 00 00 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   25.331136] ==================================================================

[   15.749347] ==================================================================
[   15.750098] BUG: KASAN: stack-out-of-bounds in kasan_stack_oob+0x2b5/0x300
[   15.750292] Read of size 1 at addr ffff888103937d02 by task kunit_try_catch/269
[   15.750586] 
[   15.751111] CPU: 0 UID: 0 PID: 269 Comm: kunit_try_catch Tainted: G    B            N  6.15.2-rc1 #1 PREEMPT(voluntary) 
[   15.751198] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.751214] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   15.751240] Call Trace:
[   15.751259]  <TASK>
[   15.751282]  dump_stack_lvl+0x73/0xb0
[   15.751323]  print_report+0xd1/0x650
[   15.751353]  ? __virt_addr_valid+0x1db/0x2d0
[   15.751376]  ? kasan_stack_oob+0x2b5/0x300
[   15.751418]  ? kasan_addr_to_slab+0x11/0xa0
[   15.751445]  ? kasan_stack_oob+0x2b5/0x300
[   15.751466]  kasan_report+0x141/0x180
[   15.751490]  ? kasan_stack_oob+0x2b5/0x300
[   15.751515]  __asan_report_load1_noabort+0x18/0x20
[   15.751536]  kasan_stack_oob+0x2b5/0x300
[   15.751585]  ? __pfx_kasan_stack_oob+0x10/0x10
[   15.751607]  ? finish_task_switch.isra.0+0x153/0x700
[   15.751709]  ? __switch_to+0x5d9/0xf60
[   15.751732]  ? dequeue_task_fair+0x166/0x4e0
[   15.751758]  ? __schedule+0x10cc/0x2b30
[   15.751781]  ? __pfx_read_tsc+0x10/0x10
[   15.751804]  ? ktime_get_ts64+0x86/0x230
[   15.751829]  kunit_try_run_case+0x1a5/0x480
[   15.751856]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.751878]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   15.751902]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   15.751925]  ? __kthread_parkme+0x82/0x180
[   15.751947]  ? preempt_count_sub+0x50/0x80
[   15.751971]  ? __pfx_kunit_try_run_case+0x10/0x10
[   15.751994]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   15.752018]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   15.752041]  kthread+0x337/0x6f0
[   15.752059]  ? trace_preempt_on+0x20/0xc0
[   15.752083]  ? __pfx_kthread+0x10/0x10
[   15.752100]  ? _raw_spin_unlock_irq+0x47/0x80
[   15.752121]  ? calculate_sigpending+0x7b/0xa0
[   15.752142]  ? __pfx_kthread+0x10/0x10
[   15.752161]  ret_from_fork+0x41/0x80
[   15.752181]  ? __pfx_kthread+0x10/0x10
[   15.752199]  ret_from_fork_asm+0x1a/0x30
[   15.752228]  </TASK>
[   15.752241] 
[   15.761743] The buggy address belongs to stack of task kunit_try_catch/269
[   15.762214]  and is located at offset 138 in frame:
[   15.762496]  kasan_stack_oob+0x0/0x300
[   15.762974] 
[   15.763071] This frame has 4 objects:
[   15.763303]  [48, 49) '__assertion'
[   15.763332]  [64, 72) 'array'
[   15.763483]  [96, 112) '__assertion'
[   15.763601]  [128, 138) 'stack_array'
[   15.763815] 
[   15.764104] The buggy address belongs to the physical page:
[   15.764338] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103937
[   15.765138] flags: 0x200000000000000(node=0|zone=2)
[   15.765349] raw: 0200000000000000 ffffea00040e4dc8 ffffea00040e4dc8 0000000000000000
[   15.765521] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   15.766083] page dumped because: kasan: bad access detected
[   15.766265] 
[   15.766335] Memory state around the buggy address:
[   15.766488]  ffff888103937c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   15.767399]  ffff888103937c80: f1 f1 f1 f1 f1 01 f2 00 f2 f2 f2 00 00 f2 f2 00
[   15.767606] >ffff888103937d00: 02 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   15.768012]                    ^
[   15.768209]  ffff888103937d80: f1 f1 f1 00 00 f2 f2 00 00 f2 f2 00 00 f3 f3 00
[   15.768497]  ffff888103937e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   15.769099] ==================================================================