Hay
Date
Dec. 4, 2024, 3:07 p.m.

Environment
qemu-arm64
qemu-x86_64

[   30.885273] ==================================================================
[   30.887081] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x278/0x2b8
[   30.888298] Write of size 1 at addr fff00000c5e7200a by task kunit_try_catch/134
[   30.889487] 
[   30.890091] CPU: 0 UID: 0 PID: 134 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241204 #1
[   30.892300] Tainted: [B]=BAD_PAGE, [N]=TEST
[   30.893178] Hardware name: linux,dummy-virt (DT)
[   30.893960] Call trace:
[   30.894757]  show_stack+0x20/0x38 (C)
[   30.895382]  dump_stack_lvl+0x8c/0xd0
[   30.895969]  print_report+0x118/0x5e0
[   30.896697]  kasan_report+0xc8/0x118
[   30.897400]  __asan_report_store1_noabort+0x20/0x30
[   30.898257]  kmalloc_large_oob_right+0x278/0x2b8
[   30.899140]  kunit_try_run_case+0x14c/0x3d0
[   30.899814]  kunit_generic_run_threadfn_adapter+0x88/0x100
[   30.900487]  kthread+0x24c/0x2d0
[   30.901128]  ret_from_fork+0x10/0x20
[   30.901744] 
[   30.902450] The buggy address belongs to the physical page:
[   30.903291] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105e70
[   30.904278] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   30.905320] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff)
[   30.906664] raw: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   30.908084] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   30.909060] head: 0bfffe0000000040 0000000000000000 dead000000000122 0000000000000000
[   30.910147] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   30.911469] head: 0bfffe0000000002 ffffc1ffc3179c01 ffffffffffffffff 0000000000000000
[   30.912395] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   30.913320] page dumped because: kasan: bad access detected
[   30.914103] 
[   30.915164] Memory state around the buggy address:
[   30.915997]  fff00000c5e71f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.917065]  fff00000c5e71f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   30.917832] >fff00000c5e72000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   30.918702]                       ^
[   30.919014]  fff00000c5e72080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   30.919427]  fff00000c5e72100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   30.919860] ==================================================================

[   21.576890] ==================================================================
[   21.577858] BUG: KASAN: slab-out-of-bounds in kmalloc_large_oob_right+0x2eb/0x340
[   21.579017] Write of size 1 at addr ffff888102b2e00a by task kunit_try_catch/154
[   21.580311] 
[   21.580910] CPU: 1 UID: 0 PID: 154 Comm: kunit_try_catch Tainted: G    B            N 6.13.0-rc1-next-20241204 #1
[   21.582342] Tainted: [B]=BAD_PAGE, [N]=TEST
[   21.583103] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[   21.583727] Call Trace:
[   21.584074]  <TASK>
[   21.584380]  dump_stack_lvl+0x73/0xb0
[   21.584736]  print_report+0xd1/0x640
[   21.585542]  ? __virt_addr_valid+0x1db/0x2d0
[   21.586481]  ? kasan_addr_to_slab+0x11/0xa0
[   21.587408]  kasan_report+0x102/0x140
[   21.588419]  ? kmalloc_large_oob_right+0x2eb/0x340
[   21.589498]  ? kmalloc_large_oob_right+0x2eb/0x340
[   21.590809]  __asan_report_store1_noabort+0x1b/0x30
[   21.591598]  kmalloc_large_oob_right+0x2eb/0x340
[   21.592130]  ? __pfx_kmalloc_large_oob_right+0x10/0x10
[   21.593255]  ? __schedule+0xc3e/0x2790
[   21.594078]  ? __pfx_read_tsc+0x10/0x10
[   21.594980]  ? ktime_get_ts64+0x86/0x230
[   21.596037]  kunit_try_run_case+0x1b3/0x490
[   21.597138]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.597910]  ? _raw_spin_lock_irqsave+0xa2/0x110
[   21.598690]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[   21.599809]  ? __kthread_parkme+0x82/0x160
[   21.600227]  ? preempt_count_sub+0x50/0x80
[   21.600831]  ? __pfx_kunit_try_run_case+0x10/0x10
[   21.602113]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[   21.602959]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[   21.603895]  kthread+0x257/0x310
[   21.604157]  ? __pfx_kthread+0x10/0x10
[   21.605118]  ret_from_fork+0x41/0x80
[   21.605934]  ? __pfx_kthread+0x10/0x10
[   21.607248]  ret_from_fork_asm+0x1a/0x30
[   21.608045]  </TASK>
[   21.608617] 
[   21.609064] The buggy address belongs to the physical page:
[   21.609819] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102b2c
[   21.610356] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   21.611226] flags: 0x200000000000040(head|node=0|zone=2)
[   21.611923] raw: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   21.613061] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   21.615065] head: 0200000000000040 0000000000000000 dead000000000122 0000000000000000
[   21.615911] head: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
[   21.616626] head: 0200000000000002 ffffea00040acb01 ffffffffffffffff 0000000000000000
[   21.617328] head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
[   21.618493] page dumped because: kasan: bad access detected
[   21.618902] 
[   21.619961] Memory state around the buggy address:
[   21.620845]  ffff888102b2df00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.621911]  ffff888102b2df80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[   21.622700] >ffff888102b2e000: 00 02 fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   21.623581]                       ^
[   21.624377]  ffff888102b2e080: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   21.625037]  ffff888102b2e100: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
[   21.627186] ==================================================================