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CVE
PUBLISHED

CVE-2024-27069

ovl: relax WARN_ON in ovl_verify_area()

AssignerLinux
Reserved2024-02-19
Published2024-05-01
Updated2024-05-29

Description

In the Linux kernel, the following vulnerability has been resolved: ovl: relax WARN_ON in ovl_verify_area() syzbot hit an assertion in copy up data loop which looks like it is the result of a lower file whose size is being changed underneath overlayfs. This type of use case is documented to cause undefined behavior, so returning EIO error for the copy up makes sense, but it should not be causing a WARN_ON assertion.

Product status

Default status
unaffected

ca7ab482401c before c3c85aefc0da
affected

ca7ab482401c before 77a28aa47687
affected

Default status
affected

6.8
affected

Any version before 6.8
unaffected

6.8.2
unaffected

6.9
unaffected

References

https://git.kernel.org/stable/c/c3c85aefc0da1e5074a06c682542a54ccc99bdca

https://git.kernel.org/stable/c/77a28aa476873048024ad56daf8f4f17d58ee48e

cve.org CVE-2024-27069

nvd.nist.gov CVE-2024-27069

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