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AJvYcCXvFYmigsSI2s4SXI7NYSRg8jMAE7HafYyaFpD/LZlReZAqhLk2SFuOfOjKFNa202r3Kg4UYDtdltEOJf8=@vger.kernel.org X-Gm-Message-State: AOJu0YwnxsNle9UXokOweau/wmuvHne42gH/1dK79LoN1NPQm0t9zwo8 VtQSSv48jUWwrLc5VbBkdD6F8/VbMtevXqU8w5ze0kgO1DmjQnc9MbafTTiieFn1xv52/uQUdqS ggFurhPXgfro38pgBNnQDcKIWevlyytR0IflIoIwHna//phFwnwQBaZ00xmg= X-Google-Smtp-Source: AGHT+IG5LfRE5qH6EyaBOHypODeoHO8Hq5efKEK5vsvSwUfKkRkPu87bZmxLuT8fuVhrg6QLEBN+NufZlQ/qqgCx3x7pM4dupdUN Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2482:b0:3dd:d6d5:62c0 with SMTP id e9e14a558f8ab-3de38ca32eemr200271985ab.12.1750754735044; Tue, 24 Jun 2025 01:45:35 -0700 (PDT) Date: Tue, 24 Jun 2025 01:45:35 -0700 In-Reply-To: <20250624-serienweise-bezeugen-0f2a5ecd5d76@brauner> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <685a65af.050a0220.2303ee.0008.GAE@google.com> Subject: Re: [syzbot] [fs?] general protection fault in pidfs_free_pid From: syzbot To: brauner@kernel.org Cc: brauner@kernel.org, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" > On Mon, Jun 23, 2025 at 11:27:26AM -0700, syzbot wrote: >> Hello, >> >> syzbot found the following issue on: >> >> HEAD commit: 5d4809e25903 Add linux-next specific files for 20250620 >> git tree: linux-next >> console+strace: https://syzkaller.appspot.com/x/log.txt?x=150ef30c580000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=58afc4b78b52b7e3 >> dashboard link: https://syzkaller.appspot.com/bug?extid=25317a459958aec47bfa >> compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10a5330c580000 >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12c9f6bc580000 >> >> Downloadable assets: >> disk image: https://storage.googleapis.com/syzbot-assets/16492bf6b788/disk-5d4809e2.raw.xz >> vmlinux: https://storage.googleapis.com/syzbot-assets/7be284ded1de/vmlinux-5d4809e2.xz >> kernel image: https://storage.googleapis.com/syzbot-assets/467d717f0d9c/bzImage-5d4809e2.xz >> >> The issue was bisected to: >> >> commit fb0b3e2b2d7f213cb4fde623706f9ed6d748a373 >> Author: Christian Brauner >> Date: Wed Jun 18 20:53:46 2025 +0000 >> >> pidfs: support xattrs on pidfds >> >> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15a1b370580000 >> final oops: https://syzkaller.appspot.com/x/report.txt?x=17a1b370580000 >> console output: https://syzkaller.appspot.com/x/log.txt?x=13a1b370580000 >> >> IMPORTANT: if you fix the issue, please add the following tag to the commit: >> Reported-by: syzbot+25317a459958aec47bfa@syzkaller.appspotmail.com >> Fixes: fb0b3e2b2d7f ("pidfs: support xattrs on pidfds") > > #syz test: > > #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs-6.17.pidfs Command #1: want either no args or 2 args (repo, branch), got 4