Date: Sat, 14 Oct 2023 17:58:05 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 274268] panic: vfs_lookup: encountered unexpected nul; string when a symlink contains an embedded NUL Message-ID: <bug-274268-227-3UldXYtb7J@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-274268-227@https.bugs.freebsd.org/bugzilla/> References: <bug-274268-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D274268 --- Comment #4 from commit-hook@FreeBSD.org --- A commit in branch stable/14 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=3D8fca98f6881fdd68a786f4366c345159a= b0df408 commit 8fca98f6881fdd68a786f4366c345159ab0df408 Author: Alan Somers <asomers@FreeBSD.org> AuthorDate: 2023-10-04 18:48:01 +0000 Commit: Alan Somers <asomers@FreeBSD.org> CommitDate: 2023-10-14 17:57:09 +0000 fusefs: sanitize FUSE_READLINK results for embedded NULs If VOP_READLINK returns a path that contains a NUL, it will trigger an assertion in vfs_lookup. Sanitize such paths in fusefs, rejecting any and warning the user about the misbehaving server. PR: 274268 Sponsored by: Axcient Reviewed by: mjg, markj Differential Revision: https://reviews.freebsd.org/D42081 (cherry picked from commit 662ec2f781521c36b76af748d74bb0a3c2e27a76) sys/fs/fuse/fuse_ipc.h | 1 + sys/fs/fuse/fuse_vnops.c | 7 +++++++ tests/sys/fs/fusefs/readlink.cc | 39 +++++++++++++++++++++++++++++++++++++= ++ 3 files changed, 47 insertions(+) --=20 You are receiving this mail because: You are the assignee for the bug.=
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