CVE-2024-26622: tomoyo: fix UAF write bug in tomoyo_write_control()
First published: Mon Mar 04 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=3.1<5.10.212 | |
| Linux Kernel | >=5.11<5.15.151 | |
| Linux Kernel | >=5.16<6.1.81 | |
| Linux Kernel | >=6.2<6.6.21 | |
| Linux Kernel | >=6.7<6.7.9 | |
| Linux Kernel | =6.8-rc1 | |
| Linux Kernel | =6.8-rc2 | |
| Linux Kernel | =6.8-rc3 | |
| Linux Kernel | =6.8-rc4 | |
| Linux Kernel | =6.8-rc5 | |
| Linux Kernel | =6.8-rc6 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
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Reference Links
- https://git.kernel.org/stable/c/2caa605079488da9601099fbda460cfc1702839f
- https://git.kernel.org/stable/c/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815
- https://git.kernel.org/stable/c/3bfe04c1273d30b866f4c7c238331ed3b08e5824
- https://git.kernel.org/stable/c/6edefe1b6c29a9932f558a898968a9fcbeec5711
- https://git.kernel.org/stable/c/7d930a4da17958f869ef679ee0e4a8729337affc
- https://git.kernel.org/stable/c/a23ac1788e2c828c097119e9a3178f0b7e503fee
- https://launchpad.net/bugs/cve/CVE-2024-26622
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26622
- https://nvd.nist.gov/vuln/detail/CVE-2024-26622
- https://security-tracker.debian.org/tracker/CVE-2024-26622
- https://ubuntu.com/security/CVE-2024-26622
- https://git.kernel.org/linus/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815
Frequently Asked Questions
What is the severity of CVE-2024-26622?
CVE-2024-26622 has been classified with a severity level that may impact the integrity of the Linux kernel.
How do I fix CVE-2024-26622?
To address CVE-2024-26622, it is recommended to update to the patched versions of the Linux kernel such as 5.10.223-1 or 6.1.123-1.
Which versions of the Linux kernel are affected by CVE-2024-26622?
CVE-2024-26622 affects multiple versions of the Linux kernel, particularly versions between 3.1 and 6.7, as well as several release candidates.
What are the potential consequences of CVE-2024-26622?
Exploitation of CVE-2024-26622 may lead to user-after-free vulnerabilities, potentially allowing attackers to execute arbitrary code.
Is CVE-2024-26622 resolved in the latest Linux kernel versions?
Yes, CVE-2024-26622 has been resolved in the latest kernel versions released after the identification of the vulnerability.
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