CVE-2023-53473
In the Linux kernel, the following vulnerability has been resolved: ext4: improve error handling from ext4_dirhash() The ext4_dirhash() will *almost* never fail, especially when the hash tree feature was first introduced.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). 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: ext4: improve error handling from ext4_dirhash() The ext4_dirhash() will *almost* never fail, especially when the hash tree feature was first introduced. However, with the addition of support of encrypted, casefolded file names, that function can most certainly fail today. So make sure the callers of ext4_dirhash() properly check for failures, and reflect the errors back up to their callers.
- 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
- 0.16% probability · 6th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/4b3cb1d108bfc2aebb0d7c8a52261a53cf7f5786Patch
- https://git.kernel.org/stable/c/70d579aefa652a06af97e013e3fbbabbe5a43553Patch
- https://git.kernel.org/stable/c/b2531936118deb3f479c4fa1bcd787b74b8faa6aPatch
- https://git.kernel.org/stable/c/c1fae027da61fe8e7eb99f7244297e81bc0f1e43Patch
- https://git.kernel.org/stable/c/f68876aeef96ef8b708ab10b9cb47ce0a5adb424Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.