[  183.004760][   T39] audit: type=1400 audit(1589606095.150:41): avc:  denied  { map } for  pid=9534 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added '[localhost]:42464' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  186.603282][   T39] audit: type=1400 audit(1589606098.750:42): avc:  denied  { map } for  pid=9555 comm="syz-executor438" path="/syz-executor438186495" dev="sda1" ino=16526 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1
[  186.693793][ T9555] overlayfs: upper fs does not support RENAME_WHITEOUT.
[  186.721527][ T9555] overlayfs: upper fs does not support xattr, falling back to index=off and metacopy=off.
[  186.752258][   T39] audit: type=1400 audit(1589606098.900:43): avc:  denied  { associate } for  pid=9555 comm="syz-executor438" name="cpuacct.usage_percpu_sys" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1
[  186.771286][ T9555] ------------[ cut here ]------------
[  186.817112][   T39] audit: type=1400 audit(1589606098.900:44): avc:  denied  { associate } for  pid=9555 comm="syz-executor438" name="cpuacct.usage_percpu_sys" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:hugetlbfs_t:s0 tclass=filesystem permissive=1
[  186.778571][ T9555] kernel BUG at mm/hugetlb.c:3814!
[  186.832988][ T9555] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[  186.891611][   T39] audit: type=1400 audit(1589606098.900:45): avc:  denied  { map } for  pid=9555 comm="syz-executor438" path="/file0/bus/cpuacct.usage_percpu_sys" dev="overlay" ino=40007 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=file permissive=1
[  186.840689][ T9555] CPU: 2 PID: 9555 Comm: syz-executor438 Not tainted 5.7.0-rc5-syzkaller #0
[  186.840689][ T9555] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
[  186.840689][ T9555] RIP: 0010:__unmap_hugepage_range+0xa39/0xbd0
[  186.840689][ T9555] Code: 00 48 c7 c7 40 5f 35 88 e8 b4 b4 a1 ff e9 c9 fd ff ff e8 6a cc c5 ff 0f 0b e9 b0 f7 ff ff e8 5e cc c5 ff 0f 0b e8 57 cc c5 ff <0f> 0b e8 50 cc c5 ff 83 8c 24 c0 00 00 00 01 48 8d bc 24 a0 00 00
[  186.928289][ T9555] RSP: 0018:ffffc900009179b0 EFLAGS: 00010293
[  186.928289][ T9555] RAX: ffff88801d4c8e40 RBX: ffffffff8c66cb60 RCX: ffffffff81ad6024
[  186.928289][ T9555] RDX: 0000000000000000 RSI: ffffffff81ad6829 RDI: 0000000000000007
[  186.928289][ T9555] RBP: 0000000020000000 R08: ffff88801d4c8e40 R09: ffffed1005429f11
[  186.928289][ T9555] R10: ffff88802a14f887 R11: ffffed1005429f10 R12: 00000000084400f8
[  186.928289][ T9555] R13: 0000000000003000 R14: 0000000000000000 R15: 0000000000400000
[  186.928289][ T9555] FS:  0000000000000000(0000) GS:ffff88802d000000(0000) knlGS:0000000000000000
[  186.928289][ T9555] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  186.928289][ T9555] CR2: 00007f3aba8f0140 CR3: 000000001567f000 CR4: 0000000000340ee0
[  186.928289][ T9555] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  186.928289][ T9555] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  186.928289][ T9555] Call Trace:
[  186.928289][ T9555]  ? huge_pte_offset+0x3b0/0x3b0
[  186.928289][ T9555]  ? down_write+0xdb/0x150
[  186.928289][ T9555]  ? __down_timeout+0x2d0/0x2d0
[  186.928289][ T9555]  __unmap_hugepage_range_final+0x30/0x70
[  186.928289][ T9555]  unmap_single_vma+0x238/0x300
[  186.928289][ T9555]  unmap_vmas+0x16f/0x2f0
[  186.928289][ T9555]  ? zap_vma_ptes+0x100/0x100
[  186.928289][ T9555]  exit_mmap+0x2aa/0x510
[  186.928289][ T9555]  ? __ia32_sys_munmap+0x80/0x80
[  186.928289][ T9555]  ? __khugepaged_exit+0x2d5/0x3f0
[  186.928289][ T9555]  ? kmem_cache_free+0x262/0x320
[  186.928289][ T9555]  ? __khugepaged_exit+0x2f6/0x3f0
[  186.928289][ T9555]  mmput+0x168/0x4b0
[  186.928289][ T9555]  do_exit+0xa51/0x2dd0
[  186.928289][ T9555]  ? randomize_stack_top+0x100/0x100
[  186.928289][ T9555]  ? mm_update_next_owner+0x7a0/0x7a0
[  186.928289][ T9555]  ? rcu_read_lock_any_held.part.0+0x50/0x50
[  186.928289][ T9555]  ? fput_many+0x2f/0x1a0
[  186.928289][ T9555]  ? ksys_mmap_pgoff+0xe0/0x5b0
[  186.928289][ T9555]  do_group_exit+0x125/0x340
[  186.928289][ T9555]  __x64_sys_exit_group+0x3a/0x50
[  186.928289][ T9555]  do_syscall_64+0xf6/0x7d0
[  186.928289][ T9555]  entry_SYSCALL_64_after_hwframe+0x49/0xb3
[  186.928289][ T9555] RIP: 0033:0x432aa8
[  186.928289][ T9555] Code: Bad RIP value.
[  186.928289][ T9555] RSP: 002b:00007ffd9fd0dd78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[  186.928289][ T9555] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000432aa8
[  186.928289][ T9555] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
[  186.928289][ T9555] RBP: 00000000004a6950 R08: 00000000000000e7 R09: ffffffffffffffd0
[  186.928289][ T9555] R10: 0000040000000011 R11: 0000000000000246 R12: 0000000000000001
[  186.928289][ T9555] R13: 00000000006b8180 R14: 0000000000000000 R15: 0000000000000000
[  186.928289][ T9555] Modules linked in:
[  187.852524][ T9555] ---[ end trace 641c68428f342121 ]---
[  187.863898][ T9555] RIP: 0010:__unmap_hugepage_range+0xa39/0xbd0
[  187.876181][ T9555] Code: 00 48 c7 c7 40 5f 35 88 e8 b4 b4 a1 ff e9 c9 fd ff ff e8 6a cc c5 ff 0f 0b e9 b0 f7 ff ff e8 5e cc c5 ff 0f 0b e8 57 cc c5 ff <0f> 0b e8 50 cc c5 ff 83 8c 24 c0 00 00 00 01 48 8d bc 24 a0 00 00
[  187.918268][ T9555] RSP: 0018:ffffc900009179b0 EFLAGS: 00010293
[  187.928199][ T9555] RAX: ffff88801d4c8e40 RBX: ffffffff8c66cb60 RCX: ffffffff81ad6024
[  187.950355][ T9555] RDX: 0000000000000000 RSI: ffffffff81ad6829 RDI: 0000000000000007
[  187.967031][ T9555] RBP: 0000000020000000 R08: ffff88801d4c8e40 R09: ffffed1005429f11
[  187.981339][ T9555] R10: ffff88802a14f887 R11: ffffed1005429f10 R12: 00000000084400f8
[  187.997174][ T9555] R13: 0000000000003000 R14: 0000000000000000 R15: 0000000000400000
[  188.023315][ T9555] FS:  0000000001292880(0000) GS:ffff88802d000000(0000) knlGS:0000000000000000
[  188.044806][ T9555] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  188.057445][ T9555] CR2: 0000000000432a7e CR3: 000000001dd02000 CR4: 0000000000340ee0
[  188.074735][ T9555] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  188.095446][ T9555] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  188.113839][ T9555] Kernel panic - not syncing: Fatal exception
[  188.123573][ T9555] Kernel Offset: disabled
[  188.123573][ T9555] Rebooting in 86400 seconds..