Hay
Date
Dec. 3, 2024, 11:38 p.m.

Environment
qemu-arm64
qemu-x86_64

[   29.361146] ==================================================================
[   29.362726] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8
[   29.363992] Write of size 1 at addr fff00000c62c600a by task kunit_try_catch/135
[   29.365954] 
[   29.366402] CPU: 0 UID: 0 PID: 135 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241203 #1
[   29.368201] Tainted: [B]=BAD_PAGE, [N]=TEST
[   29.368628] Hardware name: linux,dummy-virt (DT)
[   29.369890] Call trace:
[   29.370280]  show_stack+0x20/0x38 (C)
[   29.370993]  dump_stack_lvl+0x8c/0xd0
[   29.372236]  print_report+0x118/0x5e0
[   29.372817]  kasan_report+0xc8/0x118
[   29.373488]  __asan_report_store1_noabort+0x20/0x30
[   29.374161]  kmalloc_large_oob_right+0x278/0x2b8
[   29.374960]  kunit_try_run_case+0x14c/0x3d0
[   29.375620]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   29.376824]  kthread+0x24c/0x2d0
[   29.377302]  ret_from_fork+0x10/0x20
[   29.377869] 
[   29.378266] The buggy address belongs to the physical page:
[   29.380016] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1062c4
[   29.380991] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   29.381894] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   29.382937] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.383879] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.385136] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   29.386148] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   29.387580] head: 0bfffe0000000002 ffffc1ffc318b101 ffffffffffffffff 0000000000000000
[   29.388299] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   29.389241] page dumped because: kasan: bad access detected
[   29.389999] 
[   29.390276] Memory state around the buggy address:
[   29.390997]  fff00000c62c5f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.392449]  fff00000c62c5f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   29.393197] >fff00000c62c6000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   29.394164]                       ^
[   29.395075]  fff00000c62c6080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   29.395943]  fff00000c62c6100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   29.397195] ==================================================================

[   24.981252] ==================================================================
[   24.982589] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x2eb/0x340
[   24.983390] Write of size 1 at addr ffff888102a3a00a by task kunit_try_catch/155
[   24.983953] 
[   24.984083] CPU: 1 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241203 #1
[   24.984622] Tainted: [B]=BAD_PAGE, [N]=TEST
[   24.984873] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   24.985440] Call Trace:
[   24.985671]  <TASK>
[   24.986029]  dump_stack_lvl+0x73/0xb0
[   24.986893]  print_report+0xd1/0x640
[   24.987215]  ? __virt_addr_valid+0x1db/0x2d0
[   24.987711]  ? kasan_addr_to_slab+0x11/0xa0
[   24.988121]  kasan_report+0x102/0x140
[   24.988748]  ? kmalloc_large_oob_right+0x2eb/0x340
[   24.989403]  ? kmalloc_large_oob_right+0x2eb/0x340
[   24.989808]  __asan_report_store1_noabort+0x1b/0x30
[   24.990543]  kmalloc_large_oob_right+0x2eb/0x340
[   24.990930]  ? __pfx_kmalloc_large_oob_right+0x10/0x10
[   24.991382]  ? __schedule+0xc3e/0x2790
[   24.991867]  ? __pfx_read_tsc+0x10/0x10
[   24.992222]  ? ktime_get_ts64+0x86/0x230
[   24.992592]  kunit_try_run_case+0x1b3/0x490
[   24.993091]  ? __pfx_kunit_try_run_case+0x10/0x10
[   24.993629]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   24.994142]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   24.994688]  ? __kthread_parkme+0x82/0x160
[   24.995168]  ? preempt_count_sub+0x50/0x80
[   24.995668]  ? __pfx_kunit_try_run_case+0x10/0x10
[   24.996182]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   24.996845]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   24.997199]  kthread+0x257/0x310
[   24.997367]  ? __pfx_kthread+0x10/0x10
[   24.997625]  ret_from_fork+0x41/0x80
[   24.997885]  ? __pfx_kthread+0x10/0x10
[   24.998161]  ret_from_fork_asm+0x1a/0x30
[   24.998470]  </TASK>
[   24.998710] 
[   24.998952] The buggy address belongs to the physical page:
[   24.999420] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a38
[   24.999851] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   25.000520] flags: 0x200000000000040(head|node=0|zone=2)
[   25.000960] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   25.001492] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   25.002100] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   25.002778] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   25.003281] head: 0200000000000002 ffffea00040a8e01 ffffffffffffffff 0000000000000000
[   25.003772] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   25.004329] page dumped because: kasan: bad access detected
[   25.004852] 
[   25.005048] Memory state around the buggy address:
[   25.005419]  ffff888102a39f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   25.005950]  ffff888102a39f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   25.006324] >ffff888102a3a000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   25.006948]                       ^
[   25.007306]  ffff888102a3a080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   25.007942]  ffff888102a3a100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   25.008554] ==================================================================