Hay
Date
Dec. 5, 2024, 2:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   29.090504] ==================================================================
[   29.092057] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8
[   29.093047] Write of size 1 at addr fff00000c649200a by task kunit_try_catch/135
[   29.094315] 
[   29.094807] CPU: 0 UID: 0 PID: 135 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241205 #1
[   29.096780] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.097407] Hardware name: linux,dummy-virt (DT)
[   29.098014] Call trace:
[   29.098405]  show_stack+0x20/0x38 (C)
[   29.098962]  dump_stack_lvl+0x8c/0xd0
[   29.100371]  print_report+0x118/0x5e0
[   29.101009]  kasan_report+0xc8/0x118
[   29.101715]  __asan_report_store1_noabort+0x20/0x30
[   29.102567]  kmalloc_large_oob_right+0x278/0x2b8
[   29.103477]  kunit_try_run_case+0x14c/0x3d0
[   29.104432]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.105311]  kthread+0x24c/0x2d0
[   29.105942]  ret_from_fork+0x10/0x20
[   29.106593] 
[   29.107015] The buggy address belongs to the physical page:
[   29.108081] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106490
[   29.109046] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   29.110243] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   29.111127] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.112329] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.113261] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.114227] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.116128] head: 0bfffe0000000002 ffffc1ffc3192401 ffffffffffffffff 0000000000000000
[   29.117003] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   29.117836] page dumped because: kasan: bad access detected
[   29.118468] 
[   29.118769] Memory state around the buggy address:
[   29.119929]  fff00000c6491f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.120802]  fff00000c6491f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.121696] >fff00000c6492000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   29.122574]                       ^
[   29.123116]  fff00000c6492080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   29.124406]  fff00000c6492100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   29.125138] ==================================================================

[   26.650102] ==================================================================
[   26.651460] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x2eb/0x340
[   26.652708] Write of size 1 at addr ffff8881027a600a by task kunit_try_catch/153
[   26.653815] 
[   26.654427] CPU: 1 UID: 0 PID: 153 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241205 #1
[   26.655733] Tainted: [B]=BAD_PAGE, [N]=TEST
[   26.656911] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   26.658405] Call Trace:
[   26.658653]  <TASK>
[   26.659171]  dump_stack_lvl+0x73/0xb0
[   26.659648]  print_report+0xd1/0x640
[   26.660432]  ? __virt_addr_valid+0x1db/0x2d0
[   26.661470]  ? kasan_addr_to_slab+0x11/0xa0
[   26.661908]  kasan_report+0x102/0x140
[   26.662577]  ? kmalloc_large_oob_right+0x2eb/0x340
[   26.663412]  ? kmalloc_large_oob_right+0x2eb/0x340
[   26.664356]  __asan_report_store1_noabort+0x1b/0x30
[   26.665417]  kmalloc_large_oob_right+0x2eb/0x340
[   26.665742]  ? __pfx_kmalloc_large_oob_right+0x10/0x10
[   26.666215]  ? __schedule+0xc70/0x27e0
[   26.666736]  ? __pfx_read_tsc+0x10/0x10
[   26.667585]  ? ktime_get_ts64+0x86/0x230
[   26.668511]  kunit_try_run_case+0x1b3/0x490
[   26.669604]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.670201]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   26.670914]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   26.671641]  ? __kthread_parkme+0x82/0x160
[   26.672198]  ? preempt_count_sub+0x50/0x80
[   26.673187]  ? __pfx_kunit_try_run_case+0x10/0x10
[   26.673808]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   26.674722]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   26.675155]  kthread+0x257/0x310
[   26.676129]  ? __pfx_kthread+0x10/0x10
[   26.676552]  ret_from_fork+0x41/0x80
[   26.677737]  ? __pfx_kthread+0x10/0x10
[   26.678232]  ret_from_fork_asm+0x1a/0x30
[   26.678445]  </TASK>
[   26.678571] 
[   26.678733] The buggy address belongs to the physical page:
[   26.679076] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1027a4
[   26.680512] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   26.681250] flags: 0x200000000000040(head|node=0|zone=2)
[   26.681707] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   26.682511] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.683591] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   26.684395] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   26.685253] head: 0200000000000002 ffffea000409e901 ffffffffffffffff 0000000000000000
[   26.686189] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   26.686776] page dumped because: kasan: bad access detected
[   26.687506] 
[   26.687724] Memory state around the buggy address:
[   26.688220]  ffff8881027a5f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.689540]  ffff8881027a5f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   26.690344] >ffff8881027a6000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   26.691255]                       ^
[   26.691538]  ffff8881027a6080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   26.692395]  ffff8881027a6100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   26.693023] ==================================================================