Hay
Date
May 30, 2025, 4:14 a.m.

Environment
e850-96
qemu-arm64
qemu-x86_64
x15

[   40.877159] ==================================================================
[   40.884154] BUG: KASAN: slab-use-after-free in strlen+0xa8/0xb0
[   40.890053] Read of size 1 at addr ffff000806931190 by task kunit_try_catch/303
[   40.897344] 
[   40.898828] CPU: 2 UID: 0 PID: 303 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250530 #1 PREEMPT 
[   40.898885] Tainted: [B]=BAD_PAGE, [N]=TEST
[   40.898904] Hardware name: WinLink E850-96 board (DT)
[   40.898926] Call trace:
[   40.898940]  show_stack+0x20/0x38 (C)
[   40.898975]  dump_stack_lvl+0x8c/0xd0
[   40.899012]  print_report+0x118/0x608
[   40.899047]  kasan_report+0xdc/0x128
[   40.899081]  __asan_report_load1_noabort+0x20/0x30
[   40.899114]  strlen+0xa8/0xb0
[   40.899146]  kasan_strings+0x418/0xb00
[   40.899177]  kunit_try_run_case+0x170/0x3f0
[   40.899212]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   40.899254]  kthread+0x328/0x630
[   40.899283]  ret_from_fork+0x10/0x20
[   40.899316] 
[   40.965052] Allocated by task 303:
[   40.968440]  kasan_save_stack+0x3c/0x68
[   40.972257]  kasan_save_track+0x20/0x40
[   40.976077]  kasan_save_alloc_info+0x40/0x58
[   40.980329]  __kasan_kmalloc+0xd4/0xd8
[   40.984062]  __kmalloc_cache_noprof+0x15c/0x3c0
[   40.988576]  kasan_strings+0xc8/0xb00
[   40.992222]  kunit_try_run_case+0x170/0x3f0
[   40.996388]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   41.001857]  kthread+0x328/0x630
[   41.005069]  ret_from_fork+0x10/0x20
[   41.008628] 
[   41.010103] Freed by task 303:
[   41.013141]  kasan_save_stack+0x3c/0x68
[   41.016961]  kasan_save_track+0x20/0x40
[   41.020780]  kasan_save_free_info+0x4c/0x78
[   41.024947]  __kasan_slab_free+0x6c/0x98
[   41.028853]  kfree+0x214/0x3c8
[   41.031891]  kasan_strings+0x24c/0xb00
[   41.035623]  kunit_try_run_case+0x170/0x3f0
[   41.039790]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   41.045259]  kthread+0x328/0x630
[   41.048471]  ret_from_fork+0x10/0x20
[   41.052030] 
[   41.053507] The buggy address belongs to the object at ffff000806931180
[   41.053507]  which belongs to the cache kmalloc-32 of size 32
[   41.065833] The buggy address is located 16 bytes inside of
[   41.065833]  freed 32-byte region [ffff000806931180, ffff0008069311a0)
[   41.077897] 
[   41.079376] The buggy address belongs to the physical page:
[   41.084931] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x886931
[   41.092918] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   41.099426] page_type: f5(slab)
[   41.102561] raw: 0bfffe0000000000 ffff000800002780 dead000000000122 0000000000000000
[   41.110282] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   41.118001] page dumped because: kasan: bad access detected
[   41.123557] 
[   41.125032] Memory state around the buggy address:
[   41.129810]  ffff000806931080: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   41.137015]  ffff000806931100: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   41.144219] >ffff000806931180: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   41.151420]                          ^
[   41.155158]  ffff000806931200: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc
[   41.162361]  ffff000806931280: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   41.169562] ==================================================================

[   28.523631] ==================================================================
[   28.523760] BUG: KASAN: slab-use-after-free in strlen+0xa8/0xb0
[   28.523876] Read of size 1 at addr fff00000c7895c50 by task kunit_try_catch/260
[   28.523999] 
[   28.524070] CPU: 1 UID: 0 PID: 260 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250530 #1 PREEMPT 
[   28.524279] Tainted: [B]=BAD_PAGE, [N]=TEST
[   28.524364] Hardware name: linux,dummy-virt (DT)
[   28.524490] Call trace:
[   28.524658]  show_stack+0x20/0x38 (C)
[   28.525052]  dump_stack_lvl+0x8c/0xd0
[   28.525182]  print_report+0x118/0x608
[   28.525315]  kasan_report+0xdc/0x128
[   28.525439]  __asan_report_load1_noabort+0x20/0x30
[   28.525568]  strlen+0xa8/0xb0
[   28.525712]  kasan_strings+0x418/0xb00
[   28.526062]  kunit_try_run_case+0x170/0x3f0
[   28.526193]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   28.526329]  kthread+0x328/0x630
[   28.526442]  ret_from_fork+0x10/0x20
[   28.526571] 
[   28.526618] Allocated by task 260:
[   28.526747]  kasan_save_stack+0x3c/0x68
[   28.526932]  kasan_save_track+0x20/0x40
[   28.527074]  kasan_save_alloc_info+0x40/0x58
[   28.527246]  __kasan_kmalloc+0xd4/0xd8
[   28.527359]  __kmalloc_cache_noprof+0x15c/0x3c0
[   28.527498]  kasan_strings+0xc8/0xb00
[   28.527639]  kunit_try_run_case+0x170/0x3f0
[   28.527876]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   28.528036]  kthread+0x328/0x630
[   28.528155]  ret_from_fork+0x10/0x20
[   28.528281] 
[   28.528342] Freed by task 260:
[   28.528419]  kasan_save_stack+0x3c/0x68
[   28.528538]  kasan_save_track+0x20/0x40
[   28.528754]  kasan_save_free_info+0x4c/0x78
[   28.528871]  __kasan_slab_free+0x6c/0x98
[   28.529016]  kfree+0x214/0x3c8
[   28.529116]  kasan_strings+0x24c/0xb00
[   28.529212]  kunit_try_run_case+0x170/0x3f0
[   28.529348]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   28.529561]  kthread+0x328/0x630
[   28.529863]  ret_from_fork+0x10/0x20
[   28.530039] 
[   28.530127] The buggy address belongs to the object at fff00000c7895c40
[   28.530127]  which belongs to the cache kmalloc-32 of size 32
[   28.530270] The buggy address is located 16 bytes inside of
[   28.530270]  freed 32-byte region [fff00000c7895c40, fff00000c7895c60)
[   28.530425] 
[   28.530489] The buggy address belongs to the physical page:
[   28.530740] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107895
[   28.531469] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   28.531762] page_type: f5(slab)
[   28.532055] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000
[   28.532188] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   28.532292] page dumped because: kasan: bad access detected
[   28.532381] 
[   28.532442] Memory state around the buggy address:
[   28.532522]  fff00000c7895b00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc
[   28.532636]  fff00000c7895b80: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc
[   28.532817] >fff00000c7895c00: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   28.533015]                                                  ^
[   28.533258]  fff00000c7895c80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   28.533418]  fff00000c7895d00: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   28.533973] ==================================================================

[   21.395113] ==================================================================
[   21.395880] BUG: KASAN: slab-use-after-free in strlen+0x8f/0xb0
[   21.396430] Read of size 1 at addr ffff888102b74c50 by task kunit_try_catch/276
[   21.397194] 
[   21.397528] CPU: 0 UID: 0 PID: 276 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-next-20250530 #1 PREEMPT(voluntary) 
[   21.397696] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.397800] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   21.397871] Call Trace:
[   21.397924]  <TASK>
[   21.397986]  dump_stack_lvl+0x73/0xb0
[   21.398118]  print_report+0xd1/0x650
[   21.398208]  ? __virt_addr_valid+0x1db/0x2d0
[   21.398299]  ? strlen+0x8f/0xb0
[   21.398371]  ? kasan_complete_mode_report_info+0x64/0x200
[   21.398448]  ? strlen+0x8f/0xb0
[   21.398504]  kasan_report+0x141/0x180
[   21.398541]  ? strlen+0x8f/0xb0
[   21.398574]  __asan_report_load1_noabort+0x18/0x20
[   21.398605]  strlen+0x8f/0xb0
[   21.398751]  kasan_strings+0x57b/0xe80
[   21.398834]  ? trace_hardirqs_on+0x37/0xe0
[   21.398916]  ? __pfx_kasan_strings+0x10/0x10
[   21.399009]  ? __kasan_check_write+0x18/0x20
[   21.399083]  ? queued_spin_lock_slowpath+0x116/0xb40
[   21.399237]  ? __pfx_queued_spin_lock_slowpath+0x10/0x10
[   21.399322]  ? __pfx_read_tsc+0x10/0x10
[   21.399402]  ? ktime_get_ts64+0x86/0x230
[   21.399484]  kunit_try_run_case+0x1a5/0x480
[   21.399527]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.399557]  ? _raw_spin_lock_irqsave+0xf9/0x100
[   21.399592]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   21.399628]  ? __kthread_parkme+0x82/0x180
[   21.399685]  ? preempt_count_sub+0x50/0x80
[   21.399738]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.399768]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   21.399803]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   21.399838]  kthread+0x337/0x6f0
[   21.399865]  ? trace_preempt_on+0x20/0xc0
[   21.399899]  ? __pfx_kthread+0x10/0x10
[   21.399928]  ? _raw_spin_unlock_irq+0x47/0x80
[   21.400053]  ? calculate_sigpending+0x7b/0xa0
[   21.400137]  ? __pfx_kthread+0x10/0x10
[   21.400196]  ret_from_fork+0x116/0x1d0
[   21.400223]  ? __pfx_kthread+0x10/0x10
[   21.400253]  ret_from_fork_asm+0x1a/0x30
[   21.400297]  </TASK>
[   21.400312] 
[   21.416187] Allocated by task 276:
[   21.416787]  kasan_save_stack+0x45/0x70
[   21.417231]  kasan_save_track+0x18/0x40
[   21.417859]  kasan_save_alloc_info+0x3b/0x50
[   21.418443]  __kasan_kmalloc+0xb7/0xc0
[   21.418933]  __kmalloc_cache_noprof+0x189/0x420
[   21.419428]  kasan_strings+0xc0/0xe80
[   21.420033]  kunit_try_run_case+0x1a5/0x480
[   21.420504]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   21.421174]  kthread+0x337/0x6f0
[   21.421630]  ret_from_fork+0x116/0x1d0
[   21.422186]  ret_from_fork_asm+0x1a/0x30
[   21.422651] 
[   21.423026] Freed by task 276:
[   21.423325]  kasan_save_stack+0x45/0x70
[   21.423643]  kasan_save_track+0x18/0x40
[   21.424024]  kasan_save_free_info+0x3f/0x60
[   21.424461]  __kasan_slab_free+0x56/0x70
[   21.425019]  kfree+0x222/0x3f0
[   21.425415]  kasan_strings+0x2aa/0xe80
[   21.426020]  kunit_try_run_case+0x1a5/0x480
[   21.426479]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   21.427158]  kthread+0x337/0x6f0
[   21.427448]  ret_from_fork+0x116/0x1d0
[   21.427818]  ret_from_fork_asm+0x1a/0x30
[   21.428314] 
[   21.428575] The buggy address belongs to the object at ffff888102b74c40
[   21.428575]  which belongs to the cache kmalloc-32 of size 32
[   21.429627] The buggy address is located 16 bytes inside of
[   21.429627]  freed 32-byte region [ffff888102b74c40, ffff888102b74c60)
[   21.430787] 
[   21.431117] The buggy address belongs to the physical page:
[   21.431637] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b74
[   21.432400] flags: 0x200000000000000(node=0|zone=2)
[   21.433638] page_type: f5(slab)
[   21.434157] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000
[   21.435101] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   21.435586] page dumped because: kasan: bad access detected
[   21.436177] 
[   21.436442] Memory state around the buggy address:
[   21.437004]  ffff888102b74b00: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   21.437770]  ffff888102b74b80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   21.438456] >ffff888102b74c00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   21.439132]                                                  ^
[   21.439733]  ffff888102b74c80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   21.440410]  ffff888102b74d00: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   21.441116] ==================================================================

[   67.935913] ==================================================================
[   67.943176] BUG: KASAN: slab-use-after-free in strlen+0xb0/0xb4
[   67.949157] Read of size 1 at addr cc90a410 by task kunit_try_catch/311
[   67.955810] 
[   67.957305] CPU: 0 UID: 0 PID: 311 Comm: kunit_try_catch Tainted: G    B   W        N  6.15.0-next-20250530 #1 NONE 
[   67.957336] Tainted: [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[   67.957366] Hardware name: Generic DRA74X (Flattened Device Tree)
[   67.957366] Call trace: 
[   67.957366]  unwind_backtrace from show_stack+0x18/0x1c
[   67.957397]  show_stack from dump_stack_lvl+0x70/0x90
[   67.957427]  dump_stack_lvl from print_report+0x158/0x528
[   67.957458]  print_report from kasan_report+0xdc/0x118
[   67.957458]  kasan_report from strlen+0xb0/0xb4
[   67.957489]  strlen from kasan_strings+0x5dc/0xf00
[   67.957519]  kasan_strings from kunit_try_run_case+0x22c/0x5a8
[   67.957550]  kunit_try_run_case from kunit_generic_run_threadfn_adapter+0xc4/0x128
[   67.957580]  kunit_generic_run_threadfn_adapter from kthread+0x464/0x810
[   67.957611]  kthread from ret_from_fork+0x14/0x20
[   67.957611] Exception stack(0xf24c3fb0 to 0xf24c3ff8)
[   67.957641] 3fa0:                                     00000000 00000000 00000000 00000000
[   67.957641] 3fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   67.957672] 3fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[   67.957672] 
[   68.066741] Allocated by task 311:
[   68.070159]  kasan_save_track+0x30/0x5c
[   68.074035]  __kasan_kmalloc+0x8c/0x94
[   68.077819]  kasan_strings+0xe8/0xf00
[   68.081512]  kunit_try_run_case+0x22c/0x5a8
[   68.085723]  kunit_generic_run_threadfn_adapter+0xc4/0x128
[   68.091278]  kthread+0x464/0x810
[   68.094512]  ret_from_fork+0x14/0x20
[   68.098114] 
[   68.099639] Freed by task 311:
[   68.102691]  kasan_save_track+0x30/0x5c
[   68.106567]  kasan_save_free_info+0x3c/0x48
[   68.110778]  __kasan_slab_free+0x40/0x50
[   68.114746]  kfree+0xe8/0x384
[   68.117736]  kasan_strings+0x310/0xf00
[   68.121520]  kunit_try_run_case+0x22c/0x5a8
[   68.125732]  kunit_generic_run_threadfn_adapter+0xc4/0x128
[   68.131286]  kthread+0x464/0x810
[   68.134521]  ret_from_fork+0x14/0x20
[   68.138122] 
[   68.139648] The buggy address belongs to the object at cc90a400
[   68.139648]  which belongs to the cache kmalloc-64 of size 64
[   68.151367] The buggy address is located 16 bytes inside of
[   68.151367]  freed 64-byte region [cc90a400, cc90a440)
[   68.162139] 
[   68.163635] The buggy address belongs to the physical page:
[   68.169219] page: refcount:0 mapcount:0 mapping:00000000 index:0x0 pfn:0x8c90a
[   68.176513] flags: 0x0(zone=0)
[   68.179595] page_type: f5(slab)
[   68.182769] raw: 00000000 c7001300 00000122 00000000 00000000 80200020 f5000000 00000000
[   68.190887] raw: 00000000
[   68.193542] page dumped because: kasan: bad access detected
[   68.199157] 
[   68.200653] Memory state around the buggy address:
[   68.205474]  cc90a300: 00 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   68.212036]  cc90a380: 00 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   68.218627] >cc90a400: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   68.225189]                  ^
[   68.228271]  cc90a480: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   68.234832]  cc90a500: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[   68.241394] ==================================================================