| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <2024052151-CVE-2021-47358-3a8d@gregkh> Date: Tue, 21 May 2024 16:44:52 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2021-47358: staging: greybus: uart: fix tty use after free Description =========== In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone. Switch to using the tty-port reference counter to manage the life time of the greybus tty state to avoid use after free after a disconnect. The Linux kernel CVE team has assigned CVE-2021-47358 to this issue. Affected and fixed versions =========================== Issue introduced in 4.9 with commit a18e15175708 and fixed in 4.9.285 with commit 92b67aaafb7c Issue introduced in 4.9 with commit a18e15175708 and fixed in 4.14.249 with commit 64062fcaca88 Issue introduced in 4.9 with commit a18e15175708 and fixed in 4.19.209 with commit a5cfd51f6348 Issue introduced in 4.9 with commit a18e15175708 and fixed in 5.4.150 with commit 4dc56951a8d9 Issue introduced in 4.9 with commit a18e15175708 and fixed in 5.10.70 with commit b9e697e60ce9 Issue introduced in 4.9 with commit a18e15175708 and fixed in 5.14.9 with commit 9872ff6fdce8 Issue introduced in 4.9 with commit a18e15175708 and fixed in 5.15 with commit 92dc0b1f46e1 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2021-47358 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/staging/greybus/uart.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69 https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14 https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6 https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1 https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f
Powered by blists - more mailing lists