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Tue, 13 Oct 2026 02:04:27 -0400 (EDT) Date: Tue, 13 Oct 2026 01:04:25 -0500 From: Tyler Hicks To: syzbot Cc: ecryptfs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [ecryptfs?] KASAN: slab-out-of-bounds Read in ecryptfs_write_tag_70_packet Message-ID: References: <6ab152fc.71f81b7d.15fa6d.0030.GAE@google.com> Precedence: bulk X-Mailing-List: ecryptfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6ab152fc.71f81b7d.15fa6d.0030.GAE@google.com> On 2026-09-21 08:53:32, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 518e5b794c06 Merge tag 'for-7.3-rc3-tag' of git://git.kern.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=17e5fff9580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=c3bddd52b22c2498 > dashboard link: https://syzkaller.appspot.com/bug?extid=e4391e0d6e7c89b8c84e > compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1015fff9580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10b73915580000 > > Downloadable assets: > disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-518e5b79.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/5307a29f916b/vmlinux-518e5b79.xz > kernel image: https://storage.googleapis.com/syzbot-assets/7d4c698a99b1/bzImage-518e5b79.xz > mounted in repro: https://storage.googleapis.com/syzbot-assets/4a20c8843682/mount_0.gz > fsck result: OK (log: https://syzkaller.appspot.com/x/fsck.log?x=13e5fff9580000) > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+e4391e0d6e7c89b8c84e@syzkaller.appspotmail.com #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs.git next