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CVE-2022-49815

erofs: fix missing xas_retry() in fscache mode

Medium5.5EPSS 0.17%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: erofs: fix missing xas_retry() in fscache mode The xarray iteration only holds the RCU read lock and thus may encounter XA_RETRY_ENTRY if there's process modifying the xarray concurrently. This will cause oops when referring to the invalid entry. Fix this by adding the missing xas_retry(), which will make the iteration wind back to the root node if XA_RETRY_ENTRY is encountered.

Scores

CVSS scores of CVE-2022-49815, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.17% · top 94% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

  • Linux · Linux

    • affected d435d53228dd039fffecae123b8c138af6f96f99 – < dbc98fe99e17ed18f2f272d5fe880d844b1c68c3
    • affected d435d53228dd039fffecae123b8c138af6f96f99 – < 37020bbb71d911431e16c2c940b97cf86ae4f2f6

  • Linux · Linux

    • affected 5.19
    • unaffected < 5.19
    • unaffected 6.0.10 – ≤ 6.0.*
    • unaffected 6.1 – ≤ *

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .