CVE-2024-26622
In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyo_write_control() Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write() requests can cause use-after-free-write and double-free problems.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/2caa605079488da9601099fbda460cfc1702839fPatch
- https://git.kernel.org/stable/c/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815Patch
- https://git.kernel.org/stable/c/3bfe04c1273d30b866f4c7c238331ed3b08e5824Patch
- https://git.kernel.org/stable/c/6edefe1b6c29a9932f558a898968a9fcbeec5711Patch
- https://git.kernel.org/stable/c/7d930a4da17958f869ef679ee0e4a8729337affcPatch
- https://git.kernel.org/stable/c/a23ac1788e2c828c097119e9a3178f0b7e503feePatch
- https://git.kernel.org/stable/c/2caa605079488da9601099fbda460cfc1702839fPatch
- https://git.kernel.org/stable/c/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815Patch
- https://git.kernel.org/stable/c/3bfe04c1273d30b866f4c7c238331ed3b08e5824Patch
- https://git.kernel.org/stable/c/6edefe1b6c29a9932f558a898968a9fcbeec5711Patch
- https://git.kernel.org/stable/c/7d930a4da17958f869ef679ee0e4a8729337affcPatch
- https://git.kernel.org/stable/c/a23ac1788e2c828c097119e9a3178f0b7e503feePatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlPatch
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IVVYSTEVMPYGF6GDSOD44MUXZXAZHOHB/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.