CVE-2023-53241

nfsd: call op_release, even when op_func returns an error

State: Published
Severity: 5.5 Medium
Published: Sep 15, 2025
Updated: May 11, 2026
Reserved: Sep 15, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

nfsd: call op_release, even when op_func returns an error

For ops with "trivial" replies, nfsd4_encode_operation will shortcut most of the encoding work and skip to just marshalling up the status. One of the things it skips is calling op_release. This could cause a memory leak in the layoutget codepath if there is an error at an inopportune time.

Have the compound processing engine always call op_release, even when op_func sets an error in op->status. With this change, we also need nfsd4_block_get_device_info_scsi to set the gd_device pointer to NULL on error to avoid a double free.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-401 Missing Release of Memory after Effective Lifetime

Affected Products

Product	Versions
LinuxLinux	34b1744c91ccd44811005822106945fa80ecbff2 to before 65a33135e91e6dd661ecdf1194b9d90c49ae3570Affected 34b1744c91ccd44811005822106945fa80ecbff2 to before b11d8162c24af4a351d21e2c804d25ca493305e3Affected 34b1744c91ccd44811005822106945fa80ecbff2 to before b623a8e5d38a69a3ef8644acb1030dd7c7bc28b3Affected 34b1744c91ccd44811005822106945fa80ecbff2 to before 3d0dcada384af22dec764c8374a2997870ec86aeAffected 34b1744c91ccd44811005822106945fa80ecbff2 to before 15a8b55dbb1ba154d82627547c5761cac884d810Affected
LinuxLinux	4.14Affected before 4.14Not affected 5.10.220 through 5.10.Not affected 5.15.154 through 5.15.Not affected 6.1.24 through 6.1.Not affected 6.2.11 through 6.2.Not affected 6.3 and laterNot affected

Product

Versions

LinuxLinux

34b1744c91ccd44811005822106945fa80ecbff2 to before 65a33135e91e6dd661ecdf1194b9d90c49ae3570Affected
34b1744c91ccd44811005822106945fa80ecbff2 to before b11d8162c24af4a351d21e2c804d25ca493305e3Affected
34b1744c91ccd44811005822106945fa80ecbff2 to before b623a8e5d38a69a3ef8644acb1030dd7c7bc28b3Affected
34b1744c91ccd44811005822106945fa80ecbff2 to before 3d0dcada384af22dec764c8374a2997870ec86aeAffected
34b1744c91ccd44811005822106945fa80ecbff2 to before 15a8b55dbb1ba154d82627547c5761cac884d810Affected

LinuxLinux

4.14Affected
before 4.14Not affected
5.10.220 through 5.10.*Not affected
5.15.154 through 5.15.*Not affected
6.1.24 through 6.1.*Not affected
6.2.11 through 6.2.*Not affected
6.3 and laterNot affected

References

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