Hello, syzbot found the following issue on: HEAD commit: f915322fe014 Merge tag 'v6.3-p2' of git://git.kernel.org/p.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16f297b0c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=dc0f7cfe5b32efe2 dashboard link: https://syzkaller.appspot.com/bug?extid=427fed3295e9a7e887f2 compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11a8b9bcc80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11955f54c80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ad716bf3cfc2/disk-f915322f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3dda0fefb7a2/vmlinux-f915322f.xz kernel image: https://storage.googleapis.com/syzbot-assets/009b2977ab37/bzImage-f915322f.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/6c7bfd847dac/mount_2.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+427fed3295e9a7e887f2@xxxxxxxxxxxxxxxxxxxxxxxxx gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:6113 [syz-executor409] __gfs2_lookup+0xa4/0x270 fs/gfs2/inode.c:888 ================================================================== BUG: KASAN: vmalloc-out-of-bounds in gfs2_dump_glock+0x14b3/0x1ad0 Read of size 8 at addr ffffc90005957720 by task syz-executor409/6095 CPU: 0 PID: 6095 Comm: syz-executor409 Not tainted 6.2.0-syzkaller-13563-gf915322fe014 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:319 [inline] print_report+0x163/0x540 mm/kasan/report.c:430 kasan_report+0x176/0x1b0 mm/kasan/report.c:536 gfs2_dump_glock+0x14b3/0x1ad0 gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:465 gfs2_dirent_scan+0x512/0x640 fs/gfs2/dir.c:602 gfs2_dirent_search+0x30e/0x8c0 fs/gfs2/dir.c:850 gfs2_dir_search+0xb2/0x2f0 fs/gfs2/dir.c:1650 gfs2_lookupi+0x460/0x5d0 fs/gfs2/inode.c:332 __gfs2_lookup+0xa4/0x270 fs/gfs2/inode.c:888 gfs2_atomic_open+0x9e/0x230 fs/gfs2/inode.c:1292 atomic_open fs/namei.c:3279 [inline] lookup_open fs/namei.c:3387 [inline] open_last_lookups fs/namei.c:3484 [inline] path_openat+0x103c/0x3170 fs/namei.c:3712 do_filp_open+0x234/0x490 fs/namei.c:3742 do_sys_openat2+0x13f/0x500 fs/open.c:1348 do_sys_open fs/open.c:1364 [inline] __do_sys_open fs/open.c:1372 [inline] __se_sys_open fs/open.c:1368 [inline] __x64_sys_open+0x225/0x270 fs/open.c:1368 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff0f3f00b39 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 18 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff0f3ea4208 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007ff0f3f90788 RCX: 00007ff0f3f00b39 RDX: 0000000000000008 RSI: 0000000000000002 RDI: 0000000020000280 RBP: 00007ff0f3f90780 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff0f3f9078c R13: 00007fffdfd2a3af R14: 00007ff0f3ea4300 R15: 0000000000022000 </TASK> Memory state around the buggy address: ffffc90005957600: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90005957680: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 >ffffc90005957700: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ^ ffffc90005957780: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ffffc90005957800: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 ================================================================== --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
