Hay
Date
July 13, 2025, 11:09 p.m.

Environment
qemu-arm64
qemu-x86_64

[   15.852537] ==================================================================
[   15.852601] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8
[   15.852649] Write of size 16 at addr fff00000c58094c0 by task kunit_try_catch/167
[   15.852698] 
[   15.852743] CPU: 0 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT 
[   15.852831] Tainted: [B]=BAD_PAGE, [N]=TEST
[   15.852858] Hardware name: linux,dummy-virt (DT)
[   15.852894] Call trace:
[   15.852915]  show_stack+0x20/0x38 (C)
[   15.852962]  dump_stack_lvl+0x8c/0xd0
[   15.853013]  print_report+0x118/0x5d0
[   15.853059]  kasan_report+0xdc/0x128
[   15.853103]  __asan_report_store16_noabort+0x20/0x30
[   15.853154]  kmalloc_oob_16+0x3a0/0x3f8
[   15.853210]  kunit_try_run_case+0x170/0x3f0
[   15.853269]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   15.854159]  kthread+0x328/0x630
[   15.854236]  ret_from_fork+0x10/0x20
[   15.854284] 
[   15.854302] Allocated by task 167:
[   15.854330]  kasan_save_stack+0x3c/0x68
[   15.854387]  kasan_save_track+0x20/0x40
[   15.854480]  kasan_save_alloc_info+0x40/0x58
[   15.854560]  __kasan_kmalloc+0xd4/0xd8
[   15.854871]  __kmalloc_cache_noprof+0x16c/0x3c0
[   15.855012]  kmalloc_oob_16+0xb4/0x3f8
[   15.855082]  kunit_try_run_case+0x170/0x3f0
[   15.855232]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   15.855325]  kthread+0x328/0x630
[   15.855396]  ret_from_fork+0x10/0x20
[   15.855683] 
[   15.855737] The buggy address belongs to the object at fff00000c58094c0
[   15.855737]  which belongs to the cache kmalloc-16 of size 16
[   15.855902] The buggy address is located 0 bytes inside of
[   15.855902]  allocated 13-byte region [fff00000c58094c0, fff00000c58094cd)
[   15.855987] 
[   15.856028] The buggy address belongs to the physical page:
[   15.856126] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105809
[   15.856211] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   15.856347] page_type: f5(slab)
[   15.856404] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000
[   15.856581] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   15.856649] page dumped because: kasan: bad access detected
[   15.856680] 
[   15.856697] Memory state around the buggy address:
[   15.856878]  fff00000c5809380: fa fb fc fc 00 00 fc fc fa fb fc fc fa fb fc fc
[   15.857007]  fff00000c5809400: 00 00 fc fc 00 00 fc fc 00 00 fc fc fa fb fc fc
[   15.857918] >fff00000c5809480: fa fb fc fc fa fb fc fc 00 05 fc fc 00 00 fc fc
[   15.858751]                                               ^
[   15.858834]  fff00000c5809500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.858926]  fff00000c5809580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   15.859014] ==================================================================

[   16.661132] ==================================================================
[   16.661243] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8
[   16.661295] Write of size 16 at addr fff00000c44aba20 by task kunit_try_catch/167
[   16.661345] 
[   16.661376] CPU: 1 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT 
[   16.661588] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.661632] Hardware name: linux,dummy-virt (DT)
[   16.661725] Call trace:
[   16.661764]  show_stack+0x20/0x38 (C)
[   16.661830]  dump_stack_lvl+0x8c/0xd0
[   16.661934]  print_report+0x118/0x5d0
[   16.662016]  kasan_report+0xdc/0x128
[   16.662087]  __asan_report_store16_noabort+0x20/0x30
[   16.662155]  kmalloc_oob_16+0x3a0/0x3f8
[   16.662230]  kunit_try_run_case+0x170/0x3f0
[   16.662320]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.662390]  kthread+0x328/0x630
[   16.662432]  ret_from_fork+0x10/0x20
[   16.662478] 
[   16.662512] Allocated by task 167:
[   16.662546]  kasan_save_stack+0x3c/0x68
[   16.662821]  kasan_save_track+0x20/0x40
[   16.662930]  kasan_save_alloc_info+0x40/0x58
[   16.663365]  __kasan_kmalloc+0xd4/0xd8
[   16.663427]  __kmalloc_cache_noprof+0x16c/0x3c0
[   16.663482]  kmalloc_oob_16+0xb4/0x3f8
[   16.663674]  kunit_try_run_case+0x170/0x3f0
[   16.663780]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.663857]  kthread+0x328/0x630
[   16.664140]  ret_from_fork+0x10/0x20
[   16.664240] 
[   16.664284] The buggy address belongs to the object at fff00000c44aba20
[   16.664284]  which belongs to the cache kmalloc-16 of size 16
[   16.664344] The buggy address is located 0 bytes inside of
[   16.664344]  allocated 13-byte region [fff00000c44aba20, fff00000c44aba2d)
[   16.664427] 
[   16.664447] The buggy address belongs to the physical page:
[   16.664476] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1044ab
[   16.664531] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   16.664578] page_type: f5(slab)
[   16.664753] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000
[   16.664824] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   16.664932] page dumped because: kasan: bad access detected
[   16.665017] 
[   16.665034] Memory state around the buggy address:
[   16.665164]  fff00000c44ab900: fa fb fc fc 00 00 fc fc fa fb fc fc 00 00 fc fc
[   16.665496]  fff00000c44ab980: 00 00 fc fc 00 00 fc fc fa fb fc fc fa fb fc fc
[   16.665549] >fff00000c44aba00: fa fb fc fc 00 05 fc fc 00 00 fc fc fc fc fc fc
[   16.665587]                                   ^
[   16.665873]  fff00000c44aba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.665948]  fff00000c44abb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.666004] ==================================================================

[   12.570364] ==================================================================
[   12.570769] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0
[   12.571124] Write of size 16 at addr ffff8881026761a0 by task kunit_try_catch/183
[   12.571460] 
[   12.571780] CPU: 0 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[   12.571841] Tainted: [B]=BAD_PAGE, [N]=TEST
[   12.571853] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   12.571886] Call Trace:
[   12.571897]  <TASK>
[   12.571912]  dump_stack_lvl+0x73/0xb0
[   12.571944]  print_report+0xd1/0x610
[   12.571967]  ? __virt_addr_valid+0x1db/0x2d0
[   12.571989]  ? kmalloc_oob_16+0x452/0x4a0
[   12.572009]  ? kasan_complete_mode_report_info+0x2a/0x200
[   12.572033]  ? kmalloc_oob_16+0x452/0x4a0
[   12.572054]  kasan_report+0x141/0x180
[   12.572075]  ? kmalloc_oob_16+0x452/0x4a0
[   12.572110]  __asan_report_store16_noabort+0x1b/0x30
[   12.572136]  kmalloc_oob_16+0x452/0x4a0
[   12.572168]  ? __pfx_kmalloc_oob_16+0x10/0x10
[   12.572190]  ? __schedule+0x10cc/0x2b60
[   12.572212]  ? __pfx_read_tsc+0x10/0x10
[   12.572234]  ? ktime_get_ts64+0x86/0x230
[   12.572268]  kunit_try_run_case+0x1a5/0x480
[   12.572297]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.572320]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   12.572355]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   12.572379]  ? __kthread_parkme+0x82/0x180
[   12.572399]  ? preempt_count_sub+0x50/0x80
[   12.572423]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.572457]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.572491]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   12.572516]  kthread+0x337/0x6f0
[   12.572535]  ? trace_preempt_on+0x20/0xc0
[   12.572644]  ? __pfx_kthread+0x10/0x10
[   12.572670]  ? _raw_spin_unlock_irq+0x47/0x80
[   12.572693]  ? calculate_sigpending+0x7b/0xa0
[   12.572719]  ? __pfx_kthread+0x10/0x10
[   12.572741]  ret_from_fork+0x116/0x1d0
[   12.572760]  ? __pfx_kthread+0x10/0x10
[   12.572781]  ret_from_fork_asm+0x1a/0x30
[   12.572811]  </TASK>
[   12.572822] 
[   12.584222] Allocated by task 183:
[   12.584369]  kasan_save_stack+0x45/0x70
[   12.584846]  kasan_save_track+0x18/0x40
[   12.585208]  kasan_save_alloc_info+0x3b/0x50
[   12.585702]  __kasan_kmalloc+0xb7/0xc0
[   12.586065]  __kmalloc_cache_noprof+0x189/0x420
[   12.586512]  kmalloc_oob_16+0xa8/0x4a0
[   12.586979]  kunit_try_run_case+0x1a5/0x480
[   12.587384]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.587949]  kthread+0x337/0x6f0
[   12.588203]  ret_from_fork+0x116/0x1d0
[   12.588341]  ret_from_fork_asm+0x1a/0x30
[   12.588651] 
[   12.588902] The buggy address belongs to the object at ffff8881026761a0
[   12.588902]  which belongs to the cache kmalloc-16 of size 16
[   12.590027] The buggy address is located 0 bytes inside of
[   12.590027]  allocated 13-byte region [ffff8881026761a0, ffff8881026761ad)
[   12.590385] 
[   12.590549] The buggy address belongs to the physical page:
[   12.591104] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102676
[   12.591965] flags: 0x200000000000000(node=0|zone=2)
[   12.592459] page_type: f5(slab)
[   12.592812] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000
[   12.593266] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   12.593530] page dumped because: kasan: bad access detected
[   12.594028] 
[   12.594169] Memory state around the buggy address:
[   12.594556]  ffff888102676080: 00 05 fc fc 00 05 fc fc 00 00 fc fc 00 06 fc fc
[   12.594953]  ffff888102676100: 00 06 fc fc 00 00 fc fc fa fb fc fc fa fb fc fc
[   12.595172] >ffff888102676180: 00 05 fc fc 00 05 fc fc 00 00 fc fc fc fc fc fc
[   12.595384]                                   ^
[   12.595868]  ffff888102676200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.596616]  ffff888102676280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.597226] ==================================================================

[   12.874315] ==================================================================
[   12.875342] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0
[   12.875581] Write of size 16 at addr ffff888102b01200 by task kunit_try_catch/184
[   12.875810] 
[   12.875901] CPU: 1 UID: 0 PID: 184 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc6 #1 PREEMPT(voluntary) 
[   12.875946] Tainted: [B]=BAD_PAGE, [N]=TEST
[   12.875957] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   12.875978] Call Trace:
[   12.875990]  <TASK>
[   12.876007]  dump_stack_lvl+0x73/0xb0
[   12.876039]  print_report+0xd1/0x610
[   12.876084]  ? __virt_addr_valid+0x1db/0x2d0
[   12.876133]  ? kmalloc_oob_16+0x452/0x4a0
[   12.876154]  ? kasan_complete_mode_report_info+0x2a/0x200
[   12.876177]  ? kmalloc_oob_16+0x452/0x4a0
[   12.876198]  kasan_report+0x141/0x180
[   12.876220]  ? kmalloc_oob_16+0x452/0x4a0
[   12.876245]  __asan_report_store16_noabort+0x1b/0x30
[   12.876272]  kmalloc_oob_16+0x452/0x4a0
[   12.876294]  ? __pfx_kmalloc_oob_16+0x10/0x10
[   12.876316]  ? __schedule+0x10cc/0x2b60
[   12.876601]  ? __pfx_read_tsc+0x10/0x10
[   12.876631]  ? ktime_get_ts64+0x86/0x230
[   12.876672]  kunit_try_run_case+0x1a5/0x480
[   12.876740]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.876765]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   12.876796]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   12.876821]  ? __kthread_parkme+0x82/0x180
[   12.876844]  ? preempt_count_sub+0x50/0x80
[   12.876868]  ? __pfx_kunit_try_run_case+0x10/0x10
[   12.876893]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.876918]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   12.876944]  kthread+0x337/0x6f0
[   12.876964]  ? trace_preempt_on+0x20/0xc0
[   12.876988]  ? __pfx_kthread+0x10/0x10
[   12.877008]  ? _raw_spin_unlock_irq+0x47/0x80
[   12.877030]  ? calculate_sigpending+0x7b/0xa0
[   12.877066]  ? __pfx_kthread+0x10/0x10
[   12.877087]  ret_from_fork+0x116/0x1d0
[   12.877107]  ? __pfx_kthread+0x10/0x10
[   12.877178]  ret_from_fork_asm+0x1a/0x30
[   12.877211]  </TASK>
[   12.877221] 
[   12.885364] Allocated by task 184:
[   12.885586]  kasan_save_stack+0x45/0x70
[   12.885893]  kasan_save_track+0x18/0x40
[   12.886115]  kasan_save_alloc_info+0x3b/0x50
[   12.886350]  __kasan_kmalloc+0xb7/0xc0
[   12.886529]  __kmalloc_cache_noprof+0x189/0x420
[   12.886860]  kmalloc_oob_16+0xa8/0x4a0
[   12.887068]  kunit_try_run_case+0x1a5/0x480
[   12.887220]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   12.887578]  kthread+0x337/0x6f0
[   12.887742]  ret_from_fork+0x116/0x1d0
[   12.887879]  ret_from_fork_asm+0x1a/0x30
[   12.888239] 
[   12.888343] The buggy address belongs to the object at ffff888102b01200
[   12.888343]  which belongs to the cache kmalloc-16 of size 16
[   12.888789] The buggy address is located 0 bytes inside of
[   12.888789]  allocated 13-byte region [ffff888102b01200, ffff888102b0120d)
[   12.889554] 
[   12.889642] The buggy address belongs to the physical page:
[   12.889917] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b01
[   12.890466] flags: 0x200000000000000(node=0|zone=2)
[   12.890831] page_type: f5(slab)
[   12.891019] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000
[   12.891477] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000
[   12.891709] page dumped because: kasan: bad access detected
[   12.892095] 
[   12.892227] Memory state around the buggy address:
[   12.892466]  ffff888102b01100: 00 02 fc fc 00 02 fc fc 00 02 fc fc 00 02 fc fc
[   12.892868]  ffff888102b01180: fa fb fc fc fa fb fc fc fa fb fc fc 00 05 fc fc
[   12.893216] >ffff888102b01200: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc
[   12.893450]                       ^
[   12.893609]  ffff888102b01280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.894189]  ffff888102b01300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   12.894559] ==================================================================