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Fedora 43 Kernel Update 2026-3f85a4eba7 Moderate Page-Cache Corruption

fedora
Calendar Grey May 21, 2026
Dist Fedora Esm H88
Fedora 43 kernel update addresses SKBFL_SHARED_FRAG page-cache issue and mitigates potential pin-theft risks.
The 7.0.9-104/204 kernels contain a fix for a SKBFL_SHARED_FRAG page-cache corruption vulnerability as well as some mitigations for PinTheft

Summary

The kernel meta package

Update Information:

The 7.0.9-104/204 kernels contain a fix for a SKBFL_SHARED_FRAG page-cache corruption vulnerability as well as some mitigations for PinTheft

Topics%20covered

Topics Covered

security advisory fedora kernel corruption page cache pin-theft mitigations

Change Log

* Tue May 19 2026 Justin M. Forbes [7.0.9-4] - rxrpc: Fix RESPONSE packet verification to extract skb to a linear buffer (David Howells) - rxrpc: Fix DATA decrypt vs splice() by copying data to buffer in recvmsg (David Howells) - crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks (David Howells) * Tue May 19 2026 Justin M. Forbes [7.0.9-3] - net: gro: don't copy frags between mixed zcopy skbs (Sabrina Dubroca)

References


[ 1 ] Bug #2479833 - kernel: Linux kernel: SKBFL_SHARED_FRAG page-cache corruption PoC [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2479833

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-3f85a4eba7' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Name: kernel
Product: Fedora 43
Version: 7.0.9
Release: 104.fc43
URL: https://www.kernel.org/
Summary: The Linux kernel

Topics%20covered

Topics Covered

security advisory fedora kernel corruption page cache pin-theft mitigations

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