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 Linux kernel | >=3.1<5.10.212 | |
| Linux Linux kernel | >=5.11<5.15.151 | |
| Linux Linux kernel | >=5.16<6.1.81 | |
| Linux Linux kernel | >=6.2<6.6.21 | |
| Linux Linux kernel | >=6.7<6.7.9 | |
| Linux Linux kernel | =6.8-rc1 | |
| Linux Linux kernel | =6.8-rc2 | |
| Linux Linux kernel | =6.8-rc3 | |
| Linux Linux kernel | =6.8-rc4 | |
| Linux Linux kernel | =6.8-rc5 | |
| Linux Linux kernel | =6.8-rc6 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
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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
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