[   17.842771] ==================================================================
[   17.842844] BUG: KASAN: slab-use-after-free in strcmp+0xc0/0xc8
[   17.842894] Read of size 1 at addr fff00000c7949310 by task kunit_try_catch/264
[   17.843150] 
[   17.843187] CPU: 1 UID: 0 PID: 264 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc2 #1 PREEMPT 
[   17.843426] Tainted: [B]=BAD_PAGE, [N]=TEST
[   17.843474] Hardware name: linux,dummy-virt (DT)
[   17.843576] Call trace:
[   17.843601]  show_stack+0x20/0x38 (C)
[   17.843749]  dump_stack_lvl+0x8c/0xd0
[   17.843802]  print_report+0x118/0x608
[   17.843849]  kasan_report+0xdc/0x128
[   17.844267]  __asan_report_load1_noabort+0x20/0x30
[   17.844378]  strcmp+0xc0/0xc8
[   17.844658]  kasan_strings+0x340/0xb00
[   17.844811]  kunit_try_run_case+0x170/0x3f0
[   17.844942]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   17.845059]  kthread+0x328/0x630
[   17.845253]  ret_from_fork+0x10/0x20
[   17.845488] 
[   17.845546] Allocated by task 264:
[   17.845619]  kasan_save_stack+0x3c/0x68
[   17.845666]  kasan_save_track+0x20/0x40
[   17.845934]  kasan_save_alloc_info+0x40/0x58
[   17.846168]  __kasan_kmalloc+0xd4/0xd8
[   17.846291]  __kmalloc_cache_noprof+0x16c/0x3c0
[   17.846418]  kasan_strings+0xc8/0xb00
[   17.846581]  kunit_try_run_case+0x170/0x3f0
[   17.846873]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   17.847108]  kthread+0x328/0x630
[   17.847748]  ret_from_fork+0x10/0x20
[   17.847824] 
[   17.848277] Freed by task 264:
[   17.848457]  kasan_save_stack+0x3c/0x68
[   17.848512]  kasan_save_track+0x20/0x40
[   17.848552]  kasan_save_free_info+0x4c/0x78
[   17.848852]  __kasan_slab_free+0x6c/0x98
[   17.848924]  kfree+0x214/0x3c8
[   17.848958]  kasan_strings+0x24c/0xb00
[   17.849124]  kunit_try_run_case+0x170/0x3f0
[   17.849295]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   17.849444]  kthread+0x328/0x630
[   17.849541]  ret_from_fork+0x10/0x20
[   17.849696] 
[   17.849838] The buggy address belongs to the object at fff00000c7949300
[   17.849838]  which belongs to the cache kmalloc-32 of size 32
[   17.849941] The buggy address is located 16 bytes inside of
[   17.849941]  freed 32-byte region [fff00000c7949300, fff00000c7949320)
[   17.850042] 
[   17.850073] The buggy address belongs to the physical page:
[   17.850112] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x107949
[   17.850185] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   17.850243] page_type: f5(slab)
[   17.850290] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000
[   17.850341] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   17.850383] page dumped because: kasan: bad access detected
[   17.850433] 
[   17.850463] Memory state around the buggy address:
[   17.850497]  fff00000c7949200: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc
[   17.850542]  fff00000c7949280: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc
[   17.850587] >fff00000c7949300: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   17.850848]                          ^
[   17.851180]  fff00000c7949380: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc
[   17.851370]  fff00000c7949400: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   17.851514] ==================================================================

[   16.723630] ==================================================================
[   16.724819] BUG: KASAN: slab-use-after-free in strcmp+0xb0/0xc0
[   16.725575] Read of size 1 at addr ffff8881029f4750 by task kunit_try_catch/280
[   16.726528] 
[   16.726732] CPU: 1 UID: 0 PID: 280 Comm: kunit_try_catch Tainted: G    B            N  6.15.5-rc2 #1 PREEMPT(voluntary) 
[   16.726852] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.726882] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   16.726929] Call Trace:
[   16.726959]  <TASK>
[   16.727003]  dump_stack_lvl+0x73/0xb0
[   16.727071]  print_report+0xd1/0x650
[   16.727119]  ? __virt_addr_valid+0x1db/0x2d0
[   16.727156]  ? strcmp+0xb0/0xc0
[   16.727177]  ? kasan_complete_mode_report_info+0x64/0x200
[   16.727203]  ? strcmp+0xb0/0xc0
[   16.727224]  kasan_report+0x141/0x180
[   16.727249]  ? strcmp+0xb0/0xc0
[   16.727274]  __asan_report_load1_noabort+0x18/0x20
[   16.727296]  strcmp+0xb0/0xc0
[   16.727318]  kasan_strings+0x431/0xe80
[   16.727362]  ? __pfx_kasan_strings+0x10/0x10
[   16.727386]  ? __schedule+0x207f/0x2b60
[   16.727410]  ? schedule+0x7c/0x2e0
[   16.727432]  ? trace_hardirqs_on+0x37/0xe0
[   16.727458]  ? __schedule+0x207f/0x2b60
[   16.727482]  ? __pfx_read_tsc+0x10/0x10
[   16.727504]  ? ktime_get_ts64+0x86/0x230
[   16.727531]  kunit_try_run_case+0x1a5/0x480
[   16.727558]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.727580]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   16.727606]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   16.727629]  ? __kthread_parkme+0x82/0x180
[   16.727653]  ? preempt_count_sub+0x50/0x80
[   16.727681]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.727705]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.727728]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   16.727752]  kthread+0x337/0x6f0
[   16.727770]  ? trace_preempt_on+0x20/0xc0
[   16.727793]  ? __pfx_kthread+0x10/0x10
[   16.727813]  ? _raw_spin_unlock_irq+0x47/0x80
[   16.727834]  ? calculate_sigpending+0x7b/0xa0
[   16.727858]  ? __pfx_kthread+0x10/0x10
[   16.727895]  ret_from_fork+0x41/0x80
[   16.727918]  ? __pfx_kthread+0x10/0x10
[   16.727937]  ret_from_fork_asm+0x1a/0x30
[   16.727972]  </TASK>
[   16.727984] 
[   16.740679] Allocated by task 280:
[   16.741041]  kasan_save_stack+0x45/0x70
[   16.741488]  kasan_save_track+0x18/0x40
[   16.741843]  kasan_save_alloc_info+0x3b/0x50
[   16.742240]  __kasan_kmalloc+0xb7/0xc0
[   16.742487]  __kmalloc_cache_noprof+0x189/0x420
[   16.742707]  kasan_strings+0xc0/0xe80
[   16.742896]  kunit_try_run_case+0x1a5/0x480
[   16.743100]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.743330]  kthread+0x337/0x6f0
[   16.743721]  ret_from_fork+0x41/0x80
[   16.744163]  ret_from_fork_asm+0x1a/0x30
[   16.744538] 
[   16.744724] Freed by task 280:
[   16.745035]  kasan_save_stack+0x45/0x70
[   16.745449]  kasan_save_track+0x18/0x40
[   16.745916]  kasan_save_free_info+0x3f/0x60
[   16.746372]  __kasan_slab_free+0x56/0x70
[   16.746754]  kfree+0x222/0x3f0
[   16.747059]  kasan_strings+0x2aa/0xe80
[   16.747318]  kunit_try_run_case+0x1a5/0x480
[   16.747716]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.747956]  kthread+0x337/0x6f0
[   16.748225]  ret_from_fork+0x41/0x80
[   16.748567]  ret_from_fork_asm+0x1a/0x30
[   16.748946] 
[   16.749209] The buggy address belongs to the object at ffff8881029f4740
[   16.749209]  which belongs to the cache kmalloc-32 of size 32
[   16.749845] The buggy address is located 16 bytes inside of
[   16.749845]  freed 32-byte region [ffff8881029f4740, ffff8881029f4760)
[   16.750255] 
[   16.750391] The buggy address belongs to the physical page:
[   16.750821] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029f4
[   16.751679] flags: 0x200000000000000(node=0|zone=2)
[   16.752110] page_type: f5(slab)
[   16.752406] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000
[   16.752870] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000
[   16.753501] page dumped because: kasan: bad access detected
[   16.753737] 
[   16.753853] Memory state around the buggy address:
[   16.754075]  ffff8881029f4600: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   16.754629]  ffff8881029f4680: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   16.755360] >ffff8881029f4700: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   16.755909]                                                  ^
[   16.756405]  ffff8881029f4780: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc
[   16.756871]  ffff8881029f4800: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc
[   16.757215] ==================================================================