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Date
April 22, 2025, 11:09 a.m.

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

[   20.236885] ==================================================================
[   20.237029] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340
[   20.237661] Read of size 1 at addr ffff800080a87b4a by task kunit_try_catch/255
[   20.237813] 
[   20.237911] CPU: 0 UID: 0 PID: 255 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   20.238110] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.238528] Hardware name: linux,dummy-virt (DT)
[   20.238724] Call trace:
[   20.238803]  show_stack+0x20/0x38 (C)
[   20.238945]  dump_stack_lvl+0x8c/0xd0
[   20.239055]  print_report+0x310/0x608
[   20.239378]  kasan_report+0xdc/0x128
[   20.239626]  __asan_report_load1_noabort+0x20/0x30
[   20.239767]  kasan_alloca_oob_right+0x2dc/0x340
[   20.239885]  kunit_try_run_case+0x170/0x3f0
[   20.240206]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.240431]  kthread+0x328/0x630
[   20.240547]  ret_from_fork+0x10/0x20
[   20.240687] 
[   20.240757] The buggy address belongs to stack of task kunit_try_catch/255
[   20.240946] 
[   20.241020] The buggy address belongs to the virtual mapping at
[   20.241020]  [ffff800080a80000, ffff800080a89000) created by:
[   20.241020]  kernel_clone+0x150/0x7a8
[   20.241425] 
[   20.241499] The buggy address belongs to the physical page:
[   20.241603] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1042b6
[   20.241773] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   20.242000] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   20.242443] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   20.242781] page dumped because: kasan: bad access detected
[   20.242868] 
[   20.242914] Memory state around the buggy address:
[   20.243089]  ffff800080a87a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.243292]  ffff800080a87a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.243477] >ffff800080a87b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   20.243620]                                               ^
[   20.243871]  ffff800080a87b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   20.243981]  ffff800080a87c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   20.244076] ==================================================================
Metadata Full log Test run details 

[   21.002975] ==================================================================
[   21.003995] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x329/0x390
[   21.005223] Read of size 1 at addr ffff888103c27c4a by task kunit_try_catch/273
[   21.006207] 
[   21.006544] CPU: 0 UID: 0 PID: 273 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT(voluntary) 
[   21.006793] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.006837] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   21.006896] Call Trace:
[   21.006935]  <TASK>
[   21.007190]  dump_stack_lvl+0x73/0xb0
[   21.007267]  print_report+0xd1/0x650
[   21.007349]  ? __virt_addr_valid+0x1db/0x2d0
[   21.007395]  ? kasan_alloca_oob_right+0x329/0x390
[   21.007463]  ? kasan_addr_to_slab+0x11/0xa0
[   21.007561]  ? kasan_alloca_oob_right+0x329/0x390
[   21.007635]  kasan_report+0x141/0x180
[   21.007673]  ? kasan_alloca_oob_right+0x329/0x390
[   21.007714]  __asan_report_load1_noabort+0x18/0x20
[   21.007744]  kasan_alloca_oob_right+0x329/0x390
[   21.007780]  ? finish_task_switch.isra.0+0x153/0x700
[   21.007815]  ? rwsem_down_read_slowpath+0x64e/0xb90
[   21.007849]  ? trace_hardirqs_on+0x37/0xe0
[   21.007885]  ? __pfx_kasan_alloca_oob_right+0x10/0x10
[   21.007923]  ? __schedule+0x10cc/0x2b30
[   21.007955]  ? __pfx_read_tsc+0x10/0x10
[   21.007985]  ? ktime_get_ts64+0x86/0x230
[   21.008021]  kunit_try_run_case+0x1a5/0x480
[   21.008055]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.008086]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   21.008120]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   21.008154]  ? __kthread_parkme+0x82/0x180
[   21.008187]  ? preempt_count_sub+0x50/0x80
[   21.008223]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.008256]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   21.008287]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   21.008319]  kthread+0x337/0x6f0
[   21.008349]  ? trace_preempt_on+0x20/0xc0
[   21.008382]  ? __pfx_kthread+0x10/0x10
[   21.008411]  ? _raw_spin_unlock_irq+0x47/0x80
[   21.008514]  ? calculate_sigpending+0x7b/0xa0
[   21.008599]  ? __pfx_kthread+0x10/0x10
[   21.008654]  ret_from_fork+0x41/0x80
[   21.008685]  ? __pfx_kthread+0x10/0x10
[   21.008717]  ret_from_fork_asm+0x1a/0x30
[   21.008763]  </TASK>
[   21.008778] 
[   21.028208] The buggy address belongs to stack of task kunit_try_catch/273
[   21.028834] 
[   21.029173] The buggy address belongs to the physical page:
[   21.030971] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103c27
[   21.031564] flags: 0x200000000000000(node=0|zone=2)
[   21.032720] raw: 0200000000000000 ffffea00040f09c8 ffffea00040f09c8 0000000000000000
[   21.033633] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   21.033887] page dumped because: kasan: bad access detected
[   21.034072] 
[   21.034160] Memory state around the buggy address:
[   21.034335]  ffff888103c27b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.034741]  ffff888103c27b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.035821] >ffff888103c27c00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   21.036396]                                               ^
[   21.037080]  ffff888103c27c80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   21.037827]  ffff888103c27d00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   21.038667] ==================================================================
Metadata Full log Test run details 

[   21.754623] ==================================================================
[   21.755711] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2dc/0x340
[   21.756433] Read of size 1 at addr ffff8000896d7b4a by task kunit_try_catch/311
[   21.757112] 
[   21.757278] CPU: 2 UID: 0 PID: 311 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   21.757328] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.757344] Hardware name: Radxa ROCK Pi 4B (DT)
[   21.757363] Call trace:
[   21.757375]  show_stack+0x20/0x38 (C)
[   21.757409]  dump_stack_lvl+0x8c/0xd0
[   21.757441]  print_report+0x310/0x608
[   21.757475]  kasan_report+0xdc/0x128
[   21.757506]  __asan_report_load1_noabort+0x20/0x30
[   21.757541]  kasan_alloca_oob_right+0x2dc/0x340
[   21.757578]  kunit_try_run_case+0x170/0x3f0
[   21.757616]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.757657]  kthread+0x328/0x630
[   21.757692]  ret_from_fork+0x10/0x20
[   21.757727] 
[   21.763344] The buggy address belongs to stack of task kunit_try_catch/311
[   21.764004] 
[   21.764166] The buggy address belongs to the virtual mapping at
[   21.764166]  [ffff8000896d0000, ffff8000896d9000) created by:
[   21.764166]  kernel_clone+0x150/0x7a8
[   21.765562] 
[   21.765721] The buggy address belongs to the physical page:
[   21.766239] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xea46
[   21.766966] flags: 0x3fffe0000000000(node=0|zone=0|lastcpupid=0x1ffff)
[   21.767591] raw: 03fffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   21.768308] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   21.769018] page dumped because: kasan: bad access detected
[   21.769535] 
[   21.769689] Memory state around the buggy address:
[   21.770138]  ffff8000896d7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.770805]  ffff8000896d7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.771473] >ffff8000896d7b00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   21.772136]                                               ^
[   21.772656]  ffff8000896d7b80: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   21.773323]  ffff8000896d7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   21.773987] ==================================================================
Metadata Full log Test run details