Hay
Date
May 13, 2025, 12:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   18.936938] ==================================================================
[   18.937057] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x40c/0x488
[   18.937151] Write of size 1 at addr fff00000c4065078 by task kunit_try_catch/142
[   18.937271] 
[   18.937357] CPU: 1 UID: 0 PID: 142 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250513 #1 PREEMPT 
[   18.937476] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.937508] Hardware name: linux,dummy-virt (DT)
[   18.937546] Call trace:
[   18.937574]  show_stack+0x20/0x38 (C)
[   18.937649]  dump_stack_lvl+0x8c/0xd0
[   18.937702]  print_report+0x118/0x608
[   18.937753]  kasan_report+0xdc/0x128
[   18.937803]  __asan_report_store1_noabort+0x20/0x30
[   18.937880]  kmalloc_track_caller_oob_right+0x40c/0x488
[   18.937938]  kunit_try_run_case+0x170/0x3f0
[   18.938007]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.938068]  kthread+0x328/0x630
[   18.938122]  ret_from_fork+0x10/0x20
[   18.938180] 
[   18.938202] Allocated by task 142:
[   18.938773]  kasan_save_stack+0x3c/0x68
[   18.939044]  kasan_save_track+0x20/0x40
[   18.939128]  kasan_save_alloc_info+0x40/0x58
[   18.939177]  __kasan_kmalloc+0xd4/0xd8
[   18.939218]  __kmalloc_node_track_caller_noprof+0x18c/0x4c0
[   18.939371]  kmalloc_track_caller_oob_right+0xa8/0x488
[   18.939427]  kunit_try_run_case+0x170/0x3f0
[   18.939480]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.939852]  kthread+0x328/0x630
[   18.939963]  ret_from_fork+0x10/0x20
[   18.940052] 
[   18.940178] The buggy address belongs to the object at fff00000c4065000
[   18.940178]  which belongs to the cache kmalloc-128 of size 128
[   18.940251] The buggy address is located 0 bytes to the right of
[   18.940251]  allocated 120-byte region [fff00000c4065000, fff00000c4065078)
[   18.940320] 
[   18.940348] The buggy address belongs to the physical page:
[   18.940384] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104065
[   18.940445] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   18.940502] page_type: f5(slab)
[   18.940553] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   18.940610] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   18.940653] page dumped because: kasan: bad access detected
[   18.940687] 
[   18.941082] Memory state around the buggy address:
[   18.941142]  fff00000c4064f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.941253]  fff00000c4064f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.941311] >fff00000c4065000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   18.941438]                                                                 ^
[   18.941678]  fff00000c4065080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.941751]  fff00000c4065100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.942092] ==================================================================
[   18.943296] ==================================================================
[   18.943364] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x418/0x488
[   18.943783] Write of size 1 at addr fff00000c4065178 by task kunit_try_catch/142
[   18.944089] 
[   18.944149] CPU: 1 UID: 0 PID: 142 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250513 #1 PREEMPT 
[   18.944409] Tainted: [B]=BAD_PAGE, [N]=TEST
[   18.944445] Hardware name: linux,dummy-virt (DT)
[   18.944482] Call trace:
[   18.944508]  show_stack+0x20/0x38 (C)
[   18.944580]  dump_stack_lvl+0x8c/0xd0
[   18.944631]  print_report+0x118/0x608
[   18.944680]  kasan_report+0xdc/0x128
[   18.944726]  __asan_report_store1_noabort+0x20/0x30
[   18.944778]  kmalloc_track_caller_oob_right+0x418/0x488
[   18.944985]  kunit_try_run_case+0x170/0x3f0
[   18.945052]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.945173]  kthread+0x328/0x630
[   18.945236]  ret_from_fork+0x10/0x20
[   18.945294] 
[   18.945357] Allocated by task 142:
[   18.945393]  kasan_save_stack+0x3c/0x68
[   18.945670]  kasan_save_track+0x20/0x40
[   18.945732]  kasan_save_alloc_info+0x40/0x58
[   18.945778]  __kasan_kmalloc+0xd4/0xd8
[   18.945828]  __kmalloc_node_track_caller_noprof+0x18c/0x4c0
[   18.945881]  kmalloc_track_caller_oob_right+0x184/0x488
[   18.945926]  kunit_try_run_case+0x170/0x3f0
[   18.945967]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   18.946030]  kthread+0x328/0x630
[   18.946069]  ret_from_fork+0x10/0x20
[   18.946108] 
[   18.946131] The buggy address belongs to the object at fff00000c4065100
[   18.946131]  which belongs to the cache kmalloc-128 of size 128
[   18.946194] The buggy address is located 0 bytes to the right of
[   18.946194]  allocated 120-byte region [fff00000c4065100, fff00000c4065178)
[   18.946260] 
[   18.946283] The buggy address belongs to the physical page:
[   18.946317] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104065
[   18.946374] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff)
[   18.946426] page_type: f5(slab)
[   18.946658] raw: 0bfffe0000000000 fff00000c0001a00 dead000000000122 0000000000000000
[   18.947005] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   18.947122] page dumped because: kasan: bad access detected
[   18.947330] 
[   18.947387] Memory state around the buggy address:
[   18.947428]  fff00000c4065000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   18.947569]  fff00000c4065080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.947724] >fff00000c4065100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   18.947765]                                                                 ^
[   18.948077]  fff00000c4065180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.948139]  fff00000c4065200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   18.948294] ==================================================================

[   10.499308] ==================================================================
[   10.500039] BUG: KASAN: slab-out-of-bounds in kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.500477] Write of size 1 at addr ffff8881029ce178 by task kunit_try_catch/159
[   10.500913] 
[   10.501008] CPU: 0 UID: 0 PID: 159 Comm: kunit_try_catch Tainted: G    B            N  6.15.0-rc6-next-20250513 #1 PREEMPT(voluntary) 
[   10.501157] Tainted: [B]=BAD_PAGE, [N]=TEST
[   10.501169] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   10.501266] Call Trace:
[   10.501279]  <TASK>
[   10.501293]  dump_stack_lvl+0x73/0xb0
[   10.501323]  print_report+0xd1/0x650
[   10.501345]  ? __virt_addr_valid+0x1db/0x2d0
[   10.501367]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.501392]  ? kasan_complete_mode_report_info+0x2a/0x200
[   10.501413]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.501438]  kasan_report+0x141/0x180
[   10.501460]  ? kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.501490]  __asan_report_store1_noabort+0x1b/0x30
[   10.501512]  kmalloc_track_caller_oob_right+0x4c8/0x520
[   10.501694]  ? __pfx_kmalloc_track_caller_oob_right+0x10/0x10
[   10.501722]  ? __schedule+0x10cc/0x2b60
[   10.501746]  ? __pfx_read_tsc+0x10/0x10
[   10.501767]  ? ktime_get_ts64+0x86/0x230
[   10.501792]  kunit_try_run_case+0x1a5/0x480
[   10.501817]  ? __pfx_kunit_try_run_case+0x10/0x10
[   10.501838]  ? _raw_spin_lock_irqsave+0xa1/0x100
[   10.501860]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   10.501882]  ? __kthread_parkme+0x82/0x180
[   10.501902]  ? preempt_count_sub+0x50/0x80
[   10.501926]  ? __pfx_kunit_try_run_case+0x10/0x10
[   10.501948]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   10.501971]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   10.501993]  kthread+0x337/0x6f0
[   10.502013]  ? trace_preempt_on+0x20/0xc0
[   10.502036]  ? __pfx_kthread+0x10/0x10
[   10.502057]  ? _raw_spin_unlock_irq+0x47/0x80
[   10.502076]  ? calculate_sigpending+0x7b/0xa0
[   10.502100]  ? __pfx_kthread+0x10/0x10
[   10.502121]  ret_from_fork+0x116/0x1d0
[   10.502139]  ? __pfx_kthread+0x10/0x10
[   10.502159]  ret_from_fork_asm+0x1a/0x30
[   10.502190]  </TASK>
[   10.502202] 
[   10.513231] Allocated by task 159:
[   10.513469]  kasan_save_stack+0x45/0x70
[   10.513828]  kasan_save_track+0x18/0x40
[   10.514018]  kasan_save_alloc_info+0x3b/0x50
[   10.514380]  __kasan_kmalloc+0xb7/0xc0
[   10.514823]  __kmalloc_node_track_caller_noprof+0x1cb/0x500
[   10.515040]  kmalloc_track_caller_oob_right+0x99/0x520
[   10.515464]  kunit_try_run_case+0x1a5/0x480
[   10.515893]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   10.516237]  kthread+0x337/0x6f0
[   10.516398]  ret_from_fork+0x116/0x1d0
[   10.516865]  ret_from_fork_asm+0x1a/0x30
[   10.517092] 
[   10.517174] The buggy address belongs to the object at ffff8881029ce100
[   10.517174]  which belongs to the cache kmalloc-128 of size 128
[   10.518045] The buggy address is located 0 bytes to the right of
[   10.518045]  allocated 120-byte region [ffff8881029ce100, ffff8881029ce178)
[   10.518737] 
[   10.518836] The buggy address belongs to the physical page:
[   10.519080] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029ce
[   10.519587] flags: 0x200000000000000(node=0|zone=2)
[   10.519940] page_type: f5(slab)
[   10.520105] raw: 0200000000000000 ffff888100041a00 dead000000000122 0000000000000000
[   10.520553] raw: 0000000000000000 0000000080100010 00000000f5000000 0000000000000000
[   10.521041] page dumped because: kasan: bad access detected
[   10.521411] 
[   10.521488] Memory state around the buggy address:
[   10.521944]  ffff8881029ce000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   10.522335]  ffff8881029ce080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   10.522861] >ffff8881029ce100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
[   10.523240]                                                                 ^
[   10.523722]  ffff8881029ce180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   10.524086]  ffff8881029ce200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[   10.524577] ==================================================================