#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git wip
On 2024/12/23 3:13, syzbot wrote:
syzbot has found a reproducer for the following issue on: HEAD commit: bcde95ce32b6 Merge tag 'devicetree-fixes-for-6.13-1' of gi.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=116c0adf980000 kernel config: https://syzkaller.appspot.com/x/.config?x=1234f097ee657d8b dashboard link: https://syzkaller.appspot.com/bug?extid=69f5379a1717a0b982a1 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=167f9f30580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=142d7cf8580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/be6d4de70f82/disk-bcde95ce.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/70993500a1e4/vmlinux-bcde95ce.xz kernel image: https://storage.googleapis.com/syzbot-assets/1018443184c5/bzImage-bcde95ce.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/7e1b134be79c/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+69f5379a1717a0b98...@syzkaller.appspotmail.com F2FS-fs (loop0): Failed to enable quota tracking (type=1, err=-22). Please run fsck to fix. F2FS-fs (loop0): Cannot turn on quotas: error -22 F2FS-fs (loop0): Mounted with checkpoint version = 1b41e954 ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in fs/f2fs/f2fs.h:3292:19 index 18446744073709500059 is out of range for type '__le32[923]' (aka 'unsigned int[923]') CPU: 0 UID: 0 PID: 5820 Comm: syz-executor178 Not tainted 6.13.0-rc3-syzkaller-00301-gbcde95ce32b6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_out_of_bounds+0x121/0x150 lib/ubsan.c:429 read_inline_xattr+0x273/0x280 lookup_all_xattrs fs/f2fs/xattr.c:341 [inline] f2fs_getxattr+0x57b/0x13b0 fs/f2fs/xattr.c:533 __vfs_getxattr+0x433/0x470 fs/xattr.c:423 smk_fetch+0xb1/0x140 security/smack/smack_lsm.c:306 smack_d_instantiate+0x749/0xa50 security/smack/smack_lsm.c:3615 security_d_instantiate+0x107/0x1f0 security/security.c:4070 d_splice_alias+0x6f/0x330 fs/dcache.c:3001 f2fs_lookup+0x4ff/0x820 fs/f2fs/namei.c:523 lookup_one_qstr_excl+0x11f/0x260 fs/namei.c:1692 filename_create+0x297/0x540 fs/namei.c:4081 do_mkdirat+0xbd/0x3a0 fs/namei.c:4326 __do_sys_mkdir fs/namei.c:4354 [inline] __se_sys_mkdir fs/namei.c:4352 [inline] __x64_sys_mkdir+0x6c/0x80 fs/namei.c:4352 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5566117ad7 Code: ff ff 77 07 31 c0 c3 0f 1f 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 b8 53 00 00 00 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:00007fff7eab6a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5566117ad7 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000180 RBP: 0000000020000180 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff7eab6af0 R14: 0000000000000000 R15: 0000000000000000 </TASK> ---[ end trace ]--- --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.
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