kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 25107 Comm: syz-executor.0 Not tainted 4.19.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:d_backing_inode syzkaller/managers/linux-4-19/kernel/./include/linux/dcache.h:543 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 syzkaller/managers/linux-4-19/kernel/security/security.c:722
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 04 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 08 48 8d 7b 58 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffff8880985cf660 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005c13000
RDX: 000000000000000b RSI: ffffffff8330443e RDI: 0000000000000058
RBP: ffff8880985cf7b8 R08: 0000000000000000 R09: 0000000000000000
PM: Marking nosave pages: [mem 0x00000000-0x00000fff]
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88808e274420
R13: ffff8880985cf7b8 R14: 00000000000007ff R15: 0000000000000000
FS:  00007f98bff8b700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f128000 CR3: 00000000a8423000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_getattr+0x22/0x60 syzkaller/managers/linux-4-19/kernel/fs/stat.c:113
PM: Marking nosave pages: [mem 0x0009f000-0x000fffff]
 ovl_copy_up_one+0x125/0xf20 syzkaller/managers/linux-4-19/kernel/fs/overlayfs/copy_up.c:775
PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff]
 ovl_copy_up_flags+0x14b/0x1c0 syzkaller/managers/linux-4-19/kernel/fs/overlayfs/copy_up.c:856
 ovl_maybe_copy_up+0x140/0x190 syzkaller/managers/linux-4-19/kernel/fs/overlayfs/copy_up.c:888
 ovl_open+0xb4/0x260 syzkaller/managers/linux-4-19/kernel/fs/overlayfs/file.c:126
 do_dentry_open+0x4aa/0x1160 syzkaller/managers/linux-4-19/kernel/fs/open.c:796
PM: Basic memory bitmaps created
 do_last syzkaller/managers/linux-4-19/kernel/fs/namei.c:3421 [inline]
 path_openat+0x793/0x2df0 syzkaller/managers/linux-4-19/kernel/fs/namei.c:3537
 do_filp_open+0x18c/0x3f0 syzkaller/managers/linux-4-19/kernel/fs/namei.c:3567
 file_open_name+0x269/0x380 syzkaller/managers/linux-4-19/kernel/fs/open.c:1032
 acct_on syzkaller/managers/linux-4-19/kernel/kernel/acct.c:207 [inline]
 __do_sys_acct syzkaller/managers/linux-4-19/kernel/kernel/acct.c:286 [inline]
 __se_sys_acct+0xf2/0x930 syzkaller/managers/linux-4-19/kernel/kernel/acct.c:273
 do_syscall_64+0xf9/0x620 syzkaller/managers/linux-4-19/kernel/arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x465b09
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f98bff8b188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000440
RBP: 00000000004b069f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffe9fda303f R14: 00007f98bff8b300 R15: 0000000000022000
Modules linked in:
ieee80211 phy262: Selected rate control algorithm 'minstrel_ht'
ieee80211 phy263: Selected rate control algorithm 'minstrel_ht'
overlayfs: upperdir is in-use as upperdir/workdir of another mount, mount with '-o index=off' to override exclusive upperdir protection.
ieee80211 phy264: Selected rate control algorithm 'minstrel_ht'
---[ end trace 21145d505a47600e ]---
RIP: 0010:d_backing_inode syzkaller/managers/linux-4-19/kernel/./include/linux/dcache.h:543 [inline]
RIP: 0010:security_inode_getattr+0x46/0x140 syzkaller/managers/linux-4-19/kernel/security/security.c:722
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 04 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5d 08 48 8d 7b 58 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 d7 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b
RSP: 0018:ffff8880985cf660 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005c13000
RDX: 000000000000000b RSI: ffffffff8330443e RDI: 0000000000000058
RBP: ffff8880985cf7b8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88808e274420
R13: ffff8880985cf7b8 R14: 00000000000007ff R15: 0000000000000000
FS:  00007f98bff8b700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffdf25e1c20 CR3: 00000000a8423000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400