What’s Vulnerable › Vulnerabilities

CVE-2023-26605

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-02-26 · updated 2026-06-17
• Weakness: CWE-416

Description

In the Linux kernel 6.0.8, there is a use-after-free in inode_cgwb_move_to_attached in fs/fs-writeback.c, related to __list_del_entry_valid.

Affected products

• Linux kernel: from 5.15.75 before 5.15.81; from 5.19.17 before 6.0.0; from 6.0.3 before 6.0.11 — fixed in 5.15.81, 6.0.0, 6.0.11

How to fix

Upgrade to a fixed version: Linux kernel 5.15.81, 6.0.0, 6.0.11. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4e3c51f4e805291b057d12f5dda5aeb50a538dc4
• https://lkml.org/lkml/2023/2/22/3
• https://security.netapp.com/advisory/ntap-20230316-0010/
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4e3c51f4e805291b057d12f5dda5aeb50a538dc4
• https://lkml.org/lkml/2023/2/22/3
• https://security.netapp.com/advisory/ntap-20230316-0010/

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