Hay
Date
June 17, 2025, 6:35 a.m.

Environment
qemu-arm64
qemu-x86_64

[   16.603106] ==================================================================
[   16.603169] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x40c/0x488
[   16.603252] Write of size 1 at addr fff00000c748a478 by task kunit_try_catch/151
[   16.603304] 
[   16.603367] CPU: 1 UID: 0 PID: 151 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250617 #1 PREEMPT 
[   16.603466] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.603493] Hardware name: linux,dummy-virt (DT)
[   16.603558] Call trace:
[   16.603598]  show_stack+0x20/0x38 (C)
[   16.603650]  dump_stack_lvl+0x8c/0xd0
[   16.603699]  print_report+0x118/0x608
[   16.603752]  kasan_report+0xdc/0x128
[   16.604035]  __asan_report_store1_noabort+0x20/0x30
[   16.604104]  kmalloc_track_caller_oob_right+0x40c/0x488
[   16.604198]  kunit_try_run_case+0x170/0x3f0
[   16.604253]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.604371]  kthread+0x328/0x630
[   16.604415]  ret_from_fork+0x10/0x20
[   16.604484] 
[   16.604502] Allocated by task 151:
[   16.604560]  kasan_save_stack+0x3c/0x68
[   16.604639]  kasan_save_track+0x20/0x40
[   16.604696]  kasan_save_alloc_info+0x40/0x58
[   16.604734]  __kasan_kmalloc+0xd4/0xd8
[   16.604770]  __kmalloc_node_track_caller_noprof+0x194/0x4b8
[   16.604831]  kmalloc_track_caller_oob_right+0xa8/0x488
[   16.604873]  kunit_try_run_case+0x170/0x3f0
[   16.605041]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.605238]  kthread+0x328/0x630
[   16.605304]  ret_from_fork+0x10/0x20
[   16.605385] 
[   16.605424] The buggy address belongs to the object at fff00000c748a400
[   16.605424]  which belongs to the cache kmalloc-128 of size 128
[   16.605511] The buggy address is located 0 bytes to the right of
[   16.605511]  allocated 120-byte region [fff00000c748a400, fff00000c748a478)
[   16.605606] 
[   16.605675] The buggy address belongs to the physical page:
[   16.605711] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10748a
[   16.605786] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   16.605838] page_type: f5(slab)
[   16.605882] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   16.605961] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.606020] page dumped because: kasan: bad access detected
[   16.606090] 
[   16.606110] Memory state around the buggy address:
[   16.606141]  fff00000c748a300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.606195]  fff00000c748a380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.606237] >fff00000c748a400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.606274]                                                                 ^
[   16.606315]  fff00000c748a480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.606356]  fff00000c748a500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.606667] ==================================================================
[   16.607732] ==================================================================
[   16.607798] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x418/0x488
[   16.607851] Write of size 1 at addr fff00000c748a578 by task kunit_try_catch/151
[   16.607908] 
[   16.607951] CPU: 1 UID: 0 PID: 151 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250617 #1 PREEMPT 
[   16.608037] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.608073] Hardware name: linux,dummy-virt (DT)
[   16.608105] Call trace:
[   16.608135]  show_stack+0x20/0x38 (C)
[   16.608184]  dump_stack_lvl+0x8c/0xd0
[   16.608232]  print_report+0x118/0x608
[   16.608278]  kasan_report+0xdc/0x128
[   16.608336]  __asan_report_store1_noabort+0x20/0x30
[   16.608393]  kmalloc_track_caller_oob_right+0x418/0x488
[   16.608448]  kunit_try_run_case+0x170/0x3f0
[   16.608500]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.608553]  kthread+0x328/0x630
[   16.608595]  ret_from_fork+0x10/0x20
[   16.608642] 
[   16.608669] Allocated by task 151:
[   16.608697]  kasan_save_stack+0x3c/0x68
[   16.608737]  kasan_save_track+0x20/0x40
[   16.608774]  kasan_save_alloc_info+0x40/0x58
[   16.608819]  __kasan_kmalloc+0xd4/0xd8
[   16.608863]  __kmalloc_node_track_caller_noprof+0x194/0x4b8
[   16.608907]  kmalloc_track_caller_oob_right+0x184/0x488
[   16.608959]  kunit_try_run_case+0x170/0x3f0
[   16.608995]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   16.609037]  kthread+0x328/0x630
[   16.609068]  ret_from_fork+0x10/0x20
[   16.609103] 
[   16.609121] The buggy address belongs to the object at fff00000c748a500
[   16.609121]  which belongs to the cache kmalloc-128 of size 128
[   16.609176] The buggy address is located 0 bytes to the right of
[   16.609176]  allocated 120-byte region [fff00000c748a500, fff00000c748a578)
[   16.609238] 
[   16.609257] The buggy address belongs to the physical page:
[   16.609314] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10748a
[   16.609820] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   16.609887] page_type: f5(slab)
[   16.609939] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   16.610009] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.610147] page dumped because: kasan: bad access detected
[   16.610229] 
[   16.610280] Memory state around the buggy address:
[   16.610330]  fff00000c748a400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.610400]  fff00000c748a480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.610452] >fff00000c748a500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.610527]                                                                 ^
[   16.610594]  fff00000c748a580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.610635]  fff00000c748a600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.610672] ==================================================================

[   16.828102] ==================================================================
[   16.828935] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x4c8/0x520
[   16.829991] Write of size 1 at addr ffff888103393878 by task kunit_try_catch/169
[   16.831183] 
[   16.831868] CPU: 0 UID: 0 PID: 169 Comm: kunit_try_catch Tainted: G    B            N  6.16.0-rc2-next-20250617 #1 PREEMPT(voluntary) 
[   16.831995] Tainted: [B]=BAD_PAGE, [N]=TEST
[   16.832032] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   16.832088] Call Trace:
[   16.832127]  <TASK>
[   16.832178]  dump_stack_lvl+0x73/0xb0
[   16.832312]  print_report+0xd1/0x650
[   16.832388]  ? __virt_addr_valid+0x1db/0x2d0
[   16.832499]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   16.832575]  ? kasan_complete_mode_report_info+0x2a/0x200
[   16.832609]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   16.832645]  kasan_report+0x141/0x180
[   16.832675]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   16.832715]  __asan_report_store1_noabort+0x1b/0x30
[   16.832752]  kmalloc_track_caller_oob_right+0x4c8/0x520
[   16.832786]  ? __pfx_kmalloc_track_caller_oob_right+0x10/0x10
[   16.832821]  ? __schedule+0x10cc/0x2b60
[   16.832884]  ? __pfx_read_tsc+0x10/0x10
[   16.832918]  ? ktime_get_ts64+0x86/0x230
[   16.832951]  kunit_try_run_case+0x1a5/0x480
[   16.832987]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.833017]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   16.833047]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   16.833082]  ? __kthread_parkme+0x82/0x180
[   16.833110]  ? preempt_count_sub+0x50/0x80
[   16.833140]  ? __pfx_kunit_try_run_case+0x10/0x10
[   16.833172]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.833202]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   16.833272]  kthread+0x337/0x6f0
[   16.833344]  ? trace_preempt_on+0x20/0xc0
[   16.833402]  ? __pfx_kthread+0x10/0x10
[   16.833432]  ? _raw_spin_unlock_irq+0x47/0x80
[   16.833464]  ? calculate_sigpending+0x7b/0xa0
[   16.833498]  ? __pfx_kthread+0x10/0x10
[   16.833526]  ret_from_fork+0x116/0x1d0
[   16.833551]  ? __pfx_kthread+0x10/0x10
[   16.833579]  ret_from_fork_asm+0x1a/0x30
[   16.833621]  </TASK>
[   16.833636] 
[   16.852416] Allocated by task 169:
[   16.852729]  kasan_save_stack+0x45/0x70
[   16.853532]  kasan_save_track+0x18/0x40
[   16.854142]  kasan_save_alloc_info+0x3b/0x50
[   16.854863]  __kasan_kmalloc+0xb7/0xc0
[   16.855223]  __kmalloc_node_track_caller_noprof+0x1cb/0x500
[   16.855679]  kmalloc_track_caller_oob_right+0x99/0x520
[   16.856452]  kunit_try_run_case+0x1a5/0x480
[   16.856878]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   16.857346]  kthread+0x337/0x6f0
[   16.857686]  ret_from_fork+0x116/0x1d0
[   16.858511]  ret_from_fork_asm+0x1a/0x30
[   16.858980] 
[   16.859186] The buggy address belongs to the object at ffff888103393800
[   16.859186]  which belongs to the cache kmalloc-128 of size 128
[   16.860628] The buggy address is located 0 bytes to the right of
[   16.860628]  allocated 120-byte region [ffff888103393800, ffff888103393878)
[   16.861928] 
[   16.862166] The buggy address belongs to the physical page:
[   16.862865] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x103393
[   16.863701] flags: 0x200000000000000(node=0|zone=2)
[   16.864156] page_type: f5(slab)
[   16.864802] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   16.865678] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   16.866475] page dumped because: kasan: bad access detected
[   16.866864] 
[   16.867155] Memory state around the buggy address:
[   16.868468]  ffff888103393700: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   16.868968]  ffff888103393780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.869527] >ffff888103393800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   16.870333]                                                                 ^
[   16.871323]  ffff888103393880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.872072]  ffff888103393900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   16.872817] ==================================================================