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netfs, fscache: fix slab-use-after-free in fscache_withdraw_volume() and cachefiles_withdraw_cookie()

Pavel Reichl requested to merge preichl1/centos-stream-9:cachefiles into main

JIRA: https://issues.redhat.com/browse/RHEL-51157

CVE: CVE-2024-41057

JIRA: https://issues.redhat.com/browse/RHEL-51163

CVE: CVE-2024-41058

Signed-off-by: Pavel Reichl preichl@redhat.com

Conflicts: Mismatch of file names from fs/fscache/{internal.h, volume.c} to fs/netfs/{internal.h, fscache_volume.c} caused by the absence of upstream commit 47757ea83a54 ("netfs, fscache: Move fs/fscache/* into fs/netfs/").

Edited by Pavel Reichl

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