Hay
Date
April 20, 2025, 11:09 p.m.

Environment
qemu-arm64
qemu-x86_64
rk3399-rock-pi-4b

[   26.252889] ==================================================================
[   26.253126] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310
[   26.253311] Read of size 1 at addr ffff800080a27b5f by task kunit_try_catch/253
[   26.253436] 
[   26.253514] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   26.253701] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.253768] Hardware name: linux,dummy-virt (DT)
[   26.253842] Call trace:
[   26.253892]  show_stack+0x20/0x38 (C)
[   26.254038]  dump_stack_lvl+0x8c/0xd0
[   26.254151]  print_report+0x310/0x608
[   26.254266]  kasan_report+0xdc/0x128
[   26.254390]  __asan_report_load1_noabort+0x20/0x30
[   26.254518]  kasan_alloca_oob_left+0x2b8/0x310
[   26.254681]  kunit_try_run_case+0x170/0x3f0
[   26.254806]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   26.254976]  kthread+0x328/0x630
[   26.255108]  ret_from_fork+0x10/0x20
[   26.255967] 
[   26.256029] The buggy address belongs to stack of task kunit_try_catch/253
[   26.256907] 
[   26.256993] The buggy address belongs to the virtual mapping at
[   26.256993]  [ffff800080a20000, ffff800080a29000) created by:
[   26.256993]  kernel_clone+0x150/0x7a8
[   26.257918] 
[   26.258152] The buggy address belongs to the physical page:
[   26.258528] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10761b
[   26.258658] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   26.259838] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   26.259998] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.260816] page dumped because: kasan: bad access detected
[   26.260914] 
[   26.261051] Memory state around the buggy address:
[   26.261207]  ffff800080a27a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.261314]  ffff800080a27a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.261415] >ffff800080a27b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb
[   26.261510]                                                     ^
[   26.261604]  ffff800080a27b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   26.261714]  ffff800080a27c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   26.261986] ==================================================================

[   13.316530] ==================================================================
[   13.317050] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380
[   13.317302] Read of size 1 at addr ffff888103aefc3f by task kunit_try_catch/271
[   13.317537] 
[   13.317625] CPU: 0 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT(voluntary) 
[   13.317670] Tainted: [B]=BAD_PAGE, [N]=TEST
[   13.317682] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   13.317704] Call Trace:
[   13.317716]  <TASK>
[   13.317732]  dump_stack_lvl+0x73/0xb0
[   13.317757]  print_report+0xd1/0x650
[   13.317783]  ? __virt_addr_valid+0x1db/0x2d0
[   13.317804]  ? kasan_alloca_oob_left+0x320/0x380
[   13.317826]  ? kasan_addr_to_slab+0x11/0xa0
[   13.317847]  ? kasan_alloca_oob_left+0x320/0x380
[   13.317869]  kasan_report+0x141/0x180
[   13.317890]  ? kasan_alloca_oob_left+0x320/0x380
[   13.317916]  __asan_report_load1_noabort+0x18/0x20
[   13.317935]  kasan_alloca_oob_left+0x320/0x380
[   13.317959]  ? finish_task_switch.isra.0+0x153/0x700
[   13.317982]  ? rwsem_down_read_slowpath+0x64e/0xb90
[   13.318003]  ? trace_hardirqs_on+0x37/0xe0
[   13.318027]  ? __pfx_kasan_alloca_oob_left+0x10/0x10
[   13.318052]  ? __schedule+0x10cc/0x2b30
[   13.318074]  ? __pfx_read_tsc+0x10/0x10
[   13.318093]  ? ktime_get_ts64+0x86/0x230
[   13.318117]  kunit_try_run_case+0x1a5/0x480
[   13.318141]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.318161]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   13.318184]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   13.318206]  ? __kthread_parkme+0x82/0x180
[   13.318228]  ? preempt_count_sub+0x50/0x80
[   13.318251]  ? __pfx_kunit_try_run_case+0x10/0x10
[   13.318273]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   13.318295]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   13.318316]  kthread+0x337/0x6f0
[   13.318701]  ? trace_preempt_on+0x20/0xc0
[   13.318726]  ? __pfx_kthread+0x10/0x10
[   13.318748]  ? _raw_spin_unlock_irq+0x47/0x80
[   13.318771]  ? calculate_sigpending+0x7b/0xa0
[   13.318792]  ? __pfx_kthread+0x10/0x10
[   13.319056]  ret_from_fork+0x41/0x80
[   13.319088]  ? __pfx_kthread+0x10/0x10
[   13.319111]  ret_from_fork_asm+0x1a/0x30
[   13.319159]  </TASK>
[   13.319171] 
[   13.335819] The buggy address belongs to stack of task kunit_try_catch/271
[   13.336528] 
[   13.336690] The buggy address belongs to the physical page:
[   13.336960] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103aef
[   13.337377] flags: 0x200000000000000(node=0|zone=2)
[   13.337883] raw: 0200000000000000 ffffea00040ebbc8 ffffea00040ebbc8 0000000000000000
[   13.338605] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   13.339111] page dumped because: kasan: bad access detected
[   13.339283] 
[   13.339366] Memory state around the buggy address:
[   13.339881]  ffff888103aefb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.340627]  ffff888103aefb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   13.341270] >ffff888103aefc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   13.341864]                                         ^
[   13.342033]  ffff888103aefc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   13.342292]  ffff888103aefd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   13.343111] ==================================================================

[   23.400290] ==================================================================
[   23.401333] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310
[   23.402050] Read of size 1 at addr ffff8000896f7b5f by task kunit_try_catch/305
[   23.402730] 
[   23.402895] CPU: 0 UID: 0 PID: 305 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   23.402948] Tainted: [B]=BAD_PAGE, [N]=TEST
[   23.402964] Hardware name: Radxa ROCK Pi 4B (DT)
[   23.402983] Call trace:
[   23.402996]  show_stack+0x20/0x38 (C)
[   23.403031]  dump_stack_lvl+0x8c/0xd0
[   23.403064]  print_report+0x310/0x608
[   23.403095]  kasan_report+0xdc/0x128
[   23.403123]  __asan_report_load1_noabort+0x20/0x30
[   23.403159]  kasan_alloca_oob_left+0x2b8/0x310
[   23.403195]  kunit_try_run_case+0x170/0x3f0
[   23.403231]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   23.403271]  kthread+0x328/0x630
[   23.403306]  ret_from_fork+0x10/0x20
[   23.403340] 
[   23.408949] The buggy address belongs to stack of task kunit_try_catch/305
[   23.409603] 
[   23.409764] The buggy address belongs to the virtual mapping at
[   23.409764]  [ffff8000896f0000, ffff8000896f9000) created by:
[   23.409764]  kernel_clone+0x150/0x7a8
[   23.411157] 
[   23.411313] The buggy address belongs to the physical page:
[   23.411832] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xfe83
[   23.412558] flags: 0x3fffe0000000000(node=0|zone=0|lastcpupid=0x1ffff)
[   23.413183] raw: 03fffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   23.413900] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   23.414608] page dumped because: kasan: bad access detected
[   23.415125] 
[   23.415278] Memory state around the buggy address:
[   23.415728]  ffff8000896f7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.416395]  ffff8000896f7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   23.417063] >ffff8000896f7b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb
[   23.417726]                                                     ^
[   23.418292]  ffff8000896f7b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   23.418960]  ffff8000896f7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   23.419623] ==================================================================