Hay
Date
Nov. 28, 2024, 2:36 a.m.

Environment
qemu-arm64
qemu-x86_64

[   29.606831] ==================================================================
[   29.607954] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8
[   29.608803] Write of size 1 at addr fff00000c64e200a by task kunit_try_catch/134
[   29.609526] 
[   29.609877] CPU: 1 UID: 0 PID: 134 Comm: kunit_try_catch Tainted: G    B            N 6.12.0-next-20241128 #1
[   29.610872] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.611439] Hardware name: linux,dummy-virt (DT)
[   29.611936] Call trace:
[   29.612855]  show_stack+0x20/0x38 (C)
[   29.613730]  dump_stack_lvl+0x8c/0xd0
[   29.614276]  print_report+0x118/0x5e0
[   29.614867]  kasan_report+0xc8/0x118
[   29.615435]  __asan_report_store1_noabort+0x20/0x30
[   29.616052]  kmalloc_large_oob_right+0x278/0x2b8
[   29.616703]  kunit_try_run_case+0x14c/0x3d0
[   29.617561]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.618242]  kthread+0x24c/0x2d0
[   29.618709]  ret_from_fork+0x10/0x20
[   29.619300] 
[   29.619682] The buggy address belongs to the physical page:
[   29.620318] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1064e0
[   29.621476] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   29.622391] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   29.623103] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.624024] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.624888] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.625740] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.626644] head: 0bfffe0000000002 ffffc1ffc3193801 ffffffffffffffff 0000000000000000
[   29.627732] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   29.628583] page dumped because: kasan: bad access detected
[   29.630250] 
[   29.630580] Memory state around the buggy address:
[   29.631265]  fff00000c64e1f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.632061]  fff00000c64e1f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.632914] >fff00000c64e2000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   29.633959]                       ^
[   29.634408]  fff00000c64e2080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   29.635291]  fff00000c64e2100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   29.636037] ==================================================================

[   20.348877] ==================================================================
[   20.350029] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x2eb/0x340
[   20.350965] Write of size 1 at addr ffff888102bba00a by task kunit_try_catch/154
[   20.351688] 
[   20.352249] CPU: 0 UID: 0 PID: 154 Comm: kunit_try_catch Tainted: G    B            N 6.12.0-next-20241128 #1
[   20.353457] Tainted: [B]=BAD_PAGE, [N]=TEST
[   20.354017] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   20.354961] Call Trace:
[   20.355499]  <TASK>
[   20.355692]  dump_stack_lvl+0x73/0xb0
[   20.356173]  print_report+0xd1/0x640
[   20.356659]  ? __virt_addr_valid+0x1db/0x2d0
[   20.357140]  ? kasan_addr_to_slab+0x11/0xa0
[   20.357645]  kasan_report+0x102/0x140
[   20.357923]  ? kmalloc_large_oob_right+0x2eb/0x340
[   20.358670]  ? kmalloc_large_oob_right+0x2eb/0x340
[   20.359383]  __asan_report_store1_noabort+0x1b/0x30
[   20.359897]  kmalloc_large_oob_right+0x2eb/0x340
[   20.360507]  ? __pfx_kmalloc_large_oob_right+0x10/0x10
[   20.361059]  ? __schedule+0xc3e/0x2790
[   20.361636]  ? __pfx_read_tsc+0x10/0x10
[   20.362031]  ? ktime_get_ts64+0x84/0x230
[   20.362677]  kunit_try_run_case+0x1b3/0x490
[   20.363386]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.364145]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   20.364574]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   20.365399]  ? __kthread_parkme+0x82/0x160
[   20.366102]  ? preempt_count_sub+0x50/0x80
[   20.366713]  ? __pfx_kunit_try_run_case+0x10/0x10
[   20.367204]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   20.367778]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   20.368920]  kthread+0x257/0x310
[   20.369324]  ? __pfx_kthread+0x10/0x10
[   20.369789]  ret_from_fork+0x41/0x80
[   20.370193]  ? __pfx_kthread+0x10/0x10
[   20.370585]  ret_from_fork_asm+0x1a/0x30
[   20.371133]  </TASK>
[   20.371581] 
[   20.371828] The buggy address belongs to the physical page:
[   20.372615] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102bb8
[   20.373257] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   20.373976] flags: 0x200000000000040(head|node=0|zone=2)
[   20.374658] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   20.375077] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   20.376064] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   20.376873] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   20.377661] head: 0200000000000002 ffffea00040aee01 ffffffffffffffff 0000000000000000
[   20.378309] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   20.378967] page dumped because: kasan: bad access detected
[   20.379724] 
[   20.380063] Memory state around the buggy address:
[   20.380803]  ffff888102bb9f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.381959]  ffff888102bb9f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   20.382724] >ffff888102bba000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   20.383567]                       ^
[   20.384023]  ffff888102bba080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   20.385291]  ffff888102bba100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   20.385782] ==================================================================