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AJvYcCXkRCL2kTGsE1a6XmoBGAJmzBvNu6ZqXS5zrfLMOrKTN8DjH3Eg4QP6ZHZhRooKhCTTZxINbsBRUpxd/V0=@vger.kernel.org X-Gm-Message-State: AOJu0YzR89DzOGP5fozO1nTXJWi9ORojDGWx/tAqO4MYVYCaKKX7aYb2 Op35YpLz0Ih/PDOa/7kpgEUlHTBnUwuyjqa9GLfM9cikxz+zkf1M87LhFaID2Mt5Et95TRoVCPz ZEjPnH5mXUhvCsGWhW6BdaGSBQukfu02HH9ExgB9jWXaqMqIklmmlV68= X-Google-Smtp-Source: AGHT+IHGQmaqGVuos9QBwDdISA5x+O/TZ0V5cyBNQ8AF+mscGrMonDFHsRVlk2XWLDS2oXLitmHvGgh0TFJKh0eVk1hFsW50iSGk Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:b2d:b0:3d4:2306:a875 with SMTP id e9e14a558f8ab-3da6cdd7d45mr18806895ab.8.1746500907409; Mon, 05 May 2025 20:08:27 -0700 (PDT) Date: Mon, 05 May 2025 20:08:27 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68197d2b.050a0220.23d401.2859.GAE@google.com> Subject: [syzbot] [jfs?] KMSAN: uninit-value in BT_STACK_DUMP From: syzbot To: jfs-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org, shaggy@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 02ddfb981de8 Merge tag 'scsi-fixes' of git://git.kernel.or.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=106abf74580000 kernel config: https://syzkaller.appspot.com/x/.config?x=9dc42c34a3f5c357 dashboard link: https://syzkaller.appspot.com/bug?extid=ba5f49027aace342d24d compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=109589b3980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15ba1f74580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/5ca57f5a3f77/disk-02ddfb98.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3f23cbc11e68/vmlinux-02ddfb98.xz kernel image: https://storage.googleapis.com/syzbot-assets/73e63afac354/bzImage-02ddfb98.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/6ef4108d05dc/mount_2.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=169bb02f980000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ba5f49027aace342d24d@syzkaller.appspotmail.com bn = 0, index = 0 bn = 0, index = 0 bn = 0, index = 0 bn = 0, index = 0 bn = 0, index = 0 bn = 0, index = 0 bn = 0, index = 0 ===================================================== BUG: KMSAN: uninit-value in BT_STACK_DUMP+0x5e5/0x600 fs/jfs/jfs_btree.h:136 BT_STACK_DUMP+0x5e5/0x600 fs/jfs/jfs_btree.h:136 dtSearch+0x393f/0x3d30 fs/jfs/jfs_dtree.c:774 jfs_lookup+0x179/0x590 fs/jfs/namei.c:1461 lookup_one_qstr_excl_raw+0x204/0x5b0 fs/namei.c:1689 lookup_one_qstr_excl fs/namei.c:1711 [inline] do_unlinkat+0x2e3/0xe50 fs/namei.c:4631 __do_sys_unlink fs/namei.c:4689 [inline] __se_sys_unlink fs/namei.c:4687 [inline] __x64_sys_unlink+0x71/0xb0 fs/namei.c:4687 x64_sys_call+0x29de/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:88 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd9/0x1b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable nd created at: __filename_parentat+0x4c/0x990 fs/namei.c:2726 filename_parentat fs/namei.c:2749 [inline] do_unlinkat+0xe3/0xe50 fs/namei.c:4618 CPU: 1 UID: 0 PID: 5791 Comm: syz-executor444 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 ===================================================== --- 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@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title 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. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup