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CVE-2024-35831

io_uring: Fix release of pinned pages when __io_uaddr_map fails PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: io_uring: Fix release of pinned pages when __io_uaddr_map fails Looking at the error path of __io_uaddr_map, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the pinned pages. I didn't manage to trigger it without forcing a failure, but it can happen in real life when memory is heavily fragmented.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 223ef474316466e9f61f6e0064f3a6fe4923a2c5 before 0b6f39c175ba5f0ef72bdb3b9d2a06ad78621d62; affected 223ef474316466e9f61f6e0064f3a6fe4923a2c5 before 712e2c8415f55a4a4ddaa98a430b87f624109f69; affected 223ef474316466e9f61f6e0064f3a6fe4923a2c5 before 4d376d7ad62b6a8e8dfff56b559d9d275e5b9b3a; affected 223ef474316466e9f61f6e0064f3a6fe4923a2c5 before 67d1189d1095d471ed7fa426c7e384a7140a5dd7; affected 3f3164ce6396138747984ee9e61158e248246300; affected 6.5.7 before 6.6
Linux / Linuxaffected 6.6; unaffected 0 before 6.6; unaffected 6.6.23 through 6.6.*; unaffected 6.7.11 through 6.7.*; unaffected 6.8.2 through 6.8.*; unaffected 6.9 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.