CVE-2026-23038
pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node()
Reported by linux · Published January 31, 2026
In the Linux kernel, the following vulnerability has been resolved: pnfs/flexfiles: Fix memory leak in nfs4_ff_alloc_deviceid_node() In nfs4_ff_alloc_deviceid_node(), if the allocation for ds_versions fails, the function jumps to the out_scratch label without freeing the already allocated dsaddrs list, leading to a memory leak. Fix this by jumping to the out_err_drain_dsaddrs label, which properly frees the dsaddrs list before cleaning up other resources.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| kernel6.12-tools | Amazon Linux | 1:6.12.68-92.122.amzn2023 |
| RUGGEDCOM RST2428P | Siemens | 4.0 |
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | d67ae825a59d639e4d8b82413af84d854617a87e, d67ae825a59d639e4d8b82413af84d854617a87e, d67ae825a59d639e4d8b82413af84d854617a87e |
| Linux | Linux | 4.0, 0, 5.10.249 |
| linux | linux_kernel | 4.0, 4.0, 4.0 |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | 3.1.7, 3.1.6 |
| Siemens | RUGGEDCOM RST2428P | 0 |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | 3.1.7, 3.1.6 |
| Linux | Linux | 6.19, 6.12.67, 6.18.7 |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | 3.1.7, 3.1.6 |
Timeline
- Jan 31, 2026 EPSS Score (30 in total, the first dated here)
- Jan 31, 2026 CVE Published
- Mar 19, 2026 PoC Published (6 in total, the first dated here)
- Mar 22, 2026 Coalition ESS Score (2 in total, the first dated here)
- Jun 2, 2026 Security Advisory (44 in total, the first dated here)
- Sep 21, 2026 CVE Updated
- Sep 26, 2026 Distribution Patch (43 in total, the first dated here)
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