Hay
Date
Dec. 5, 2024, 2:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   32.979110] ==================================================================
[   32.980475] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x2e4/0x348
[   32.982200] Read of size 1 at addr ffff800080c17bea by task kunit_try_catch/242
[   32.983117] 
[   32.983527] CPU: 1 UID: 0 PID: 242 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241205 #1
[   32.984623] Tainted: [B]=BAD_PAGE, [N]=TEST
[   32.985320] Hardware name: linux,dummy-virt (DT)
[   32.986464] Call trace:
[   32.986958]  show_stack+0x20/0x38 (C)
[   32.987539]  dump_stack_lvl+0x8c/0xd0
[   32.988647]  print_report+0x2fc/0x5e0
[   32.989483]  kasan_report+0xc8/0x118
[   32.990079]  __asan_report_load1_noabort+0x20/0x30
[   32.990928]  kasan_alloca_oob_right+0x2e4/0x348
[   32.992033]  kunit_try_run_case+0x14c/0x3d0
[   32.992608]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   32.993446]  kthread+0x24c/0x2d0
[   32.994003]  ret_from_fork+0x10/0x20
[   32.994583] 
[   32.995052] The buggy address belongs to stack of task kunit_try_catch/242
[   32.996230] 
[   32.997142] The buggy address belongs to the virtual mapping at
[   32.997142]  [ffff800080c10000, ffff800080c19000) created by:
[   32.997142]  kernel_clone+0x140/0x788
[   32.999093] 
[   32.999753] The buggy address belongs to the physical page:
[   33.000598] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10664d
[   33.001636] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   33.002634] raw: 0bfffe0000000000 0000000000000000 dead000000000122 0000000000000000
[   33.003926] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   33.005355] page dumped because: kasan: bad access detected
[   33.006068] 
[   33.006484] Memory state around the buggy address:
[   33.007646]  ffff800080c17a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   33.008608]  ffff800080c17b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   33.009534] >ffff800080c17b80: 00 00 00 00 00 00 00 00 ca ca ca ca 00 02 cb cb
[   33.010434]                                                           ^
[   33.011853]  ffff800080c17c00: cb cb cb cb 00 00 00 00 00 00 f1 f1 f1 f1 01 f2
[   33.012583]  ffff800080c17c80: 04 f2 00 f2 f2 f2 00 00 f3 f3 00 00 00 00 00 00
[   33.013518] ==================================================================

[   30.796249] ==================================================================
[   30.797324] BUG: KASAN: alloca-out-of-bounds in kasan_alloca_oob_right+0x328/0x390
[   30.798747] Read of size 1 at addr ffff888102da7caa by task kunit_try_catch/260
[   30.800474] 
[   30.800702] CPU: 1 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241205 #1
[   30.802838] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.803429] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   30.804640] Call Trace:
[   30.805174]  <TASK>
[   30.805699]  dump_stack_lvl+0x73/0xb0
[   30.806118]  print_report+0xd1/0x640
[   30.807009]  ? __virt_addr_valid+0x1db/0x2d0
[   30.807778]  ? kasan_addr_to_slab+0x11/0xa0
[   30.808480]  kasan_report+0x102/0x140
[   30.809232]  ? kasan_alloca_oob_right+0x328/0x390
[   30.809727]  ? kasan_alloca_oob_right+0x328/0x390
[   30.810269]  __asan_report_load1_noabort+0x18/0x20
[   30.811301]  kasan_alloca_oob_right+0x328/0x390
[   30.811781]  ? uclamp_rq_dec_id+0x3c0/0x460
[   30.812988]  ? __schedule+0xc70/0x27e0
[   30.813499]  ? trace_hardirqs_on+0x37/0xe0
[   30.813943]  ? __pfx_kasan_alloca_oob_right+0x10/0x10
[   30.815397]  ? __schedule+0xc70/0x27e0
[   30.815792]  ? __pfx_read_tsc+0x10/0x10
[   30.816825]  ? ktime_get_ts64+0x86/0x230
[   30.817243]  kunit_try_run_case+0x1b3/0x490
[   30.817703]  ? __pfx_kunit_try_run_case+0x10/0x10
[   30.818881]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   30.819340]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   30.819795]  ? __kthread_parkme+0x82/0x160
[   30.820210]  ? preempt_count_sub+0x50/0x80
[   30.820585]  ? __pfx_kunit_try_run_case+0x10/0x10
[   30.821644]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   30.822409]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   30.823408]  kthread+0x257/0x310
[   30.824501]  ? __pfx_kthread+0x10/0x10
[   30.825169]  ret_from_fork+0x41/0x80
[   30.826068]  ? __pfx_kthread+0x10/0x10
[   30.826581]  ret_from_fork_asm+0x1a/0x30
[   30.827346]  </TASK>
[   30.827895] 
[   30.828197] The buggy address belongs to stack of task kunit_try_catch/260
[   30.829277] 
[   30.829446] The buggy address belongs to the physical page:
[   30.830519] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102da7
[   30.831365] flags: 0x200000000000000(node=0|zone=2)
[   30.832548] raw: 0200000000000000 ffffea00040b69c8 ffffea00040b69c8 0000000000000000
[   30.833638] raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   30.834527] page dumped because: kasan: bad access detected
[   30.835427] 
[   30.835927] Memory state around the buggy address:
[   30.836743]  ffff888102da7b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.837780]  ffff888102da7c00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.838994] >ffff888102da7c80: ca ca ca ca 00 02 cb cb cb cb cb cb 00 00 00 00
[   30.839504]                                   ^
[   30.840326]  ffff888102da7d00: 00 f1 f1 f1 f1 01 f2 04 f2 00 f2 f2 f2 00 00 f3
[   30.841346]  ffff888102da7d80: f3 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1
[   30.842323] ==================================================================