public inbox for glibc-bugs@sourceware.org help / color / mirror / Atom feed
From: "fweimer at redhat dot com" <sourceware-bugzilla@sourceware.org> To: glibc-bugs@sourceware.org Subject: [Bug stdio/27842] New: Race condition in _IO_FLAGS2_NEED_LOCK optimization Date: Mon, 10 May 2021 19:24:13 +0000 [thread overview] Message-ID: <bug-27842-131@http.sourceware.org/bugzilla/> (raw) https://sourceware.org/bugzilla/show_bug.cgi?id=27842 Bug ID: 27842 Summary: Race condition in _IO_FLAGS2_NEED_LOCK optimization Product: glibc Version: 2.34 Status: NEW Severity: minor Priority: P3 Component: stdio Assignee: unassigned at sourceware dot org Reporter: fweimer at redhat dot com Target Milestone: --- Flags: security- flockfile uses a read-modify-write operation on _flags2 outside a lock region, which can potentially clobber concurrent _flags2 updates performed under the lock. Found via code review, no reproducer known. -- You are receiving this mail because: You are on the CC list for the bug.
next reply other threads:[~2021-05-10 19:24 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-05-10 19:24 fweimer at redhat dot com [this message] 2022-06-10 12:38 ` [Bug stdio/27842] " cvs-commit at gcc dot gnu.org
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=bug-27842-131@http.sourceware.org/bugzilla/ \ --to=sourceware-bugzilla@sourceware.org \ --cc=glibc-bugs@sourceware.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).