Bug 2320239 (CVE-2024-47737) - CVE-2024-47737 kernel: nfsd: call cache_put if xdr_reserve_space returns NULL
Summary: CVE-2024-47737 kernel: nfsd: call cache_put if xdr_reserve_space returns NULL
Keywords:
Status: NEW
Alias: CVE-2024-47737
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2320382
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-10-21 13:04 UTC by OSIDB Bzimport
Modified: 2025-05-13 08:29 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:6966 0 None None None 2025-05-13 08:29:16 UTC

Description OSIDB Bzimport 2024-10-21 13:04:40 UTC 
In the Linux kernel, the following vulnerability has been resolved:

nfsd: call cache_put if xdr_reserve_space returns NULL

If not enough buffer space available, but idmap_lookup has triggered
lookup_fn which calls cache_get and returns successfully. Then we
missed to call cache_put here which pairs with cache_get.

Reviwed-by: Jeff Layton <jlayton>
Comment 1 Robb Gatica 2024-10-21 15:49:09 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102108-CVE-2024-47737-b77e@gregkh/T
Comment 2 errata-xmlrpc 2025-05-13 08:29:15 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966
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