CVE-2023-53241
nfsd: call op_release, even when op_func returns an error
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
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.
This update provides the initial livepatch for this kernel update. This update does not contain any fixes and will be updated with livepatches later.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2025-09-15 CVE Reserved
- 2025-09-15 CVE Published
- 2025-09-15 CVE Updated
- 2025-10-17 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-772: Missing Release of Resource after Effective Lifetime
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/34b1744c91ccd44811005822106945fa80ecbff2 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-53241 | 2023-11-14 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2395306 | 2023-11-14 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 5.10.220 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.10.220" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 5.15.154 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 5.15.154" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 6.1.24 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.1.24" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 6.2.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.2.11" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.14 < 6.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.14 < 6.3" | en |
Affected
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