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Sat, 6 Apr 2019 18:04:04 GMT (envelope-from asomers@FreeBSD.org) Message-Id: <201904061804.x36I44Wk018014@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: asomers set sender to asomers@FreeBSD.org using -f From: Alan Somers To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r345986 - head/sys/fs/fuse X-SVN-Group: head X-SVN-Commit-Author: asomers X-SVN-Commit-Paths: head/sys/fs/fuse X-SVN-Commit-Revision: 345986 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk X-Loop: FreeBSD.org Sender: owner-src-committers@freebsd.org X-Rspamd-Queue-Id: 365908B133 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.97 / 15.00]; local_wl_from(0.00)[freebsd.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.998,0]; NEURAL_HAM_SHORT(-0.97)[-0.971,0]; ASN(0.00)[asn:11403, ipnet:96.47.64.0/20, country:US]; NEURAL_HAM_LONG(-1.00)[-1.000,0] Status: O X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Date: Tue, 03 Sep 2019 14:06:48 -0000 X-Original-Date: Sat, 6 Apr 2019 18:04:04 +0000 (UTC) X-List-Received-Date: Tue, 03 Sep 2019 14:06:48 -0000 Author: asomers Date: Sat Apr 6 18:04:04 2019 New Revision: 345986 URL: https://svnweb.freebsd.org/changeset/base/345986 Log: fusefs: fix a panic on mount Don't page fault if the file descriptor provided with "-o fd" is invalid. This is a merge of r345419 from the projects/fuse2 branch. Reviewed by: ngie Tested by: Marek Zarychta MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D19836 Modified: head/sys/fs/fuse/fuse_vfsops.c Modified: head/sys/fs/fuse/fuse_vfsops.c ============================================================================== --- head/sys/fs/fuse/fuse_vfsops.c Sat Apr 6 17:21:05 2019 (r345985) +++ head/sys/fs/fuse/fuse_vfsops.c Sat Apr 6 18:04:04 2019 (r345986) @@ -225,7 +225,7 @@ fuse_vfsop_mount(struct mount *mp) size_t len; struct cdev *fdev; - struct fuse_data *data; + struct fuse_data *data = NULL; struct thread *td; struct file *fp, *fptmp; char *fspec, *subtype; @@ -361,7 +361,7 @@ fuse_vfsop_mount(struct mount *mp) out: if (err) { FUSE_LOCK(); - if (data->mp == mp) { + if (data != NULL && data->mp == mp) { /* * Destroy device only if we acquired reference to * it