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

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

[   20.213974] ==================================================================
[   20.214170] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310
[   20.214313] Read of size 1 at addr ffff800080a87b5f by task kunit_try_catch/253
[   20.214456] 
[   20.214560] CPU: 0 UID: 0 PID: 253 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   20.214809] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.214881] Hardware name: linux,dummy-virt (DT)
[   20.214957] Call trace:
[   20.215011]  show_stack+0x20/0x38 (C)
[   20.215146]  dump_stack_lvl+0x8c/0xd0
[   20.215251]  print_report+0x310/0x608
[   20.215372]  kasan_report+0xdc/0x128
[   20.215481]  __asan_report_load1_noabort+0x20/0x30
[   20.215600]  kasan_alloca_oob_left+0x2b8/0x310
[   20.215762]  kunit_try_run_case+0x170/0x3f0
[   20.215908]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   20.216055]  kthread+0x328/0x630
[   20.216150]  ret_from_fork+0x10/0x20
[   20.216247] 
[   20.216472] The buggy address belongs to stack of task kunit_try_catch/253
[   20.216671] 
[   20.216731] The buggy address belongs to the virtual mapping at
[   20.216731]  [ffff800080a80000, ffff800080a89000) created by:
[   20.216731]  kernel_clone+0x150/0x7a8
[   20.216922] 
[   20.216987] The buggy address belongs to the physical page:
[   20.217084] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1042b6
[   20.217207] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   20.217355] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   20.217485] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   20.217604] page dumped because: kasan: bad access detected
[   20.217692] 
[   20.217767] Memory state around the buggy address:
[   20.217861]  ffff800080a87a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.218004]  ffff800080a87a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.218174] >ffff800080a87b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb
[   20.218540]                                                     ^
[   20.218678]  ffff800080a87b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   20.219004]  ffff800080a87c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   20.219103] ==================================================================
Metadata Full log Test run details 

[   20.953255] ==================================================================
[   20.954225] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x320/0x380
[   20.954873] Read of size 1 at addr ffff888103cffc3f by task kunit_try_catch/271
[   20.955345] 
[   20.955670] CPU: 0 UID: 0 PID: 271 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT(voluntary) 
[   20.955826] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.955868] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   20.955948] Call Trace:
[   20.956016]  <TASK>
[   20.956067]  dump_stack_lvl+0x73/0xb0
[   20.956147]  print_report+0xd1/0x650
[   20.956225]  ? __virt_addr_valid+0x1db/0x2d0
[   20.956304]  ? kasan_alloca_oob_left+0x320/0x380
[   20.956399]  ? kasan_addr_to_slab+0x11/0xa0
[   20.956552]  ? kasan_alloca_oob_left+0x320/0x380
[   20.956631]  kasan_report+0x141/0x180
[   20.956728]  ? kasan_alloca_oob_left+0x320/0x380
[   20.956954]  __asan_report_load1_noabort+0x18/0x20
[   20.957039]  kasan_alloca_oob_left+0x320/0x380
[   20.957122]  ? finish_task_switch.isra.0+0x153/0x700
[   20.957202]  ? rwsem_down_read_slowpath+0x64e/0xb90
[   20.957239]  ? trace_hardirqs_on+0x37/0xe0
[   20.957278]  ? __pfx_kasan_alloca_oob_left+0x10/0x10
[   20.957316]  ? __schedule+0x10cc/0x2b30
[   20.957350]  ? __pfx_read_tsc+0x10/0x10
[   20.957379]  ? ktime_get_ts64+0x86/0x230
[   20.957438]  kunit_try_run_case+0x1a5/0x480
[   20.957554]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.957633]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   20.957672]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   20.957707]  ? __kthread_parkme+0x82/0x180
[   20.957739]  ? preempt_count_sub+0x50/0x80
[   20.957772]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.957804]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   20.957836]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   20.957868]  kthread+0x337/0x6f0
[   20.957897]  ? trace_preempt_on+0x20/0xc0
[   20.957929]  ? __pfx_kthread+0x10/0x10
[   20.957960]  ? _raw_spin_unlock_irq+0x47/0x80
[   20.957991]  ? calculate_sigpending+0x7b/0xa0
[   20.958021]  ? __pfx_kthread+0x10/0x10
[   20.958053]  ret_from_fork+0x41/0x80
[   20.958083]  ? __pfx_kthread+0x10/0x10
[   20.958113]  ret_from_fork_asm+0x1a/0x30
[   20.958157]  </TASK>
[   20.958171] 
[   20.978735] The buggy address belongs to stack of task kunit_try_catch/271
[   20.979385] 
[   20.979848] The buggy address belongs to the physical page:
[   20.980324] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103cff
[   20.981201] flags: 0x200000000000000(node=0|zone=2)
[   20.982271] raw: 0200000000000000 ffffea00040f3fc8 ffffea00040f3fc8 0000000000000000
[   20.983138] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   20.983989] page dumped because: kasan: bad access detected
[   20.984630] 
[   20.984910] Memory state around the buggy address:
[   20.985339]  ffff888103cffb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.986224]  ffff888103cffb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.988003] >ffff888103cffc00: 00 00 00 00 ca ca ca ca 00 02 cb cb cb cb cb cb
[   20.989195]                                         ^
[   20.989422]  ffff888103cffc80: 00 00 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00
[   20.990279]  ffff888103cffd00: 00 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 f1
[   20.991918] ==================================================================
Metadata Full log Test run details 

[   21.731641] ==================================================================
[   21.732656] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_left+0x2b8/0x310
[   21.733357] Read of size 1 at addr ffff8000896b7b5f by task kunit_try_catch/309
[   21.734029] 
[   21.734209] CPU: 3 UID: 0 PID: 309 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc3 #1 PREEMPT 
[   21.734268] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.734285] Hardware name: Radxa ROCK Pi 4B (DT)
[   21.734304] Call trace:
[   21.734318]  show_stack+0x20/0x38 (C)
[   21.734357]  dump_stack_lvl+0x8c/0xd0
[   21.734390]  print_report+0x310/0x608
[   21.734421]  kasan_report+0xdc/0x128
[   21.734450]  __asan_report_load1_noabort+0x20/0x30
[   21.734485]  kasan_alloca_oob_left+0x2b8/0x310
[   21.734521]  kunit_try_run_case+0x170/0x3f0
[   21.734559]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   21.734598]  kthread+0x328/0x630
[   21.734633]  ret_from_fork+0x10/0x20
[   21.734667] 
[   21.740282] The buggy address belongs to stack of task kunit_try_catch/309
[   21.740937] 
[   21.741098] The buggy address belongs to the virtual mapping at
[   21.741098]  [ffff8000896b0000, ffff8000896b9000) created by:
[   21.741098]  kernel_clone+0x150/0x7a8
[   21.742491] 
[   21.742648] The buggy address belongs to the physical page:
[   21.743166] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xea32
[   21.743895] flags: 0x3fffe0000000000(node=0|zone=0|lastcpupid=0x1ffff)
[   21.744520] raw: 03fffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   21.745237] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   21.745948] page dumped because: kasan: bad access detected
[   21.746464] 
[   21.746618] Memory state around the buggy address:
[   21.747068]  ffff8000896b7a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.747735]  ffff8000896b7a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.748402] >ffff8000896b7b00: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb
[   21.749066]                                                     ^
[   21.749632]  ffff8000896b7b80: cb cb cb cb 00 00 00 00 f1 f1 f1 f1 01 f2 04 f2
[   21.750300]  ffff8000896b7c00: 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00 00 00
[   21.750964] ==================================================================
Metadata Full log Test run details