CVE-2026-72219
lockd: Plug nlm_file leak when nlm_do_fopen() fails
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: lockd: Plug nlm_file leak when nlm_do_fopen() fails A client can repeatedly drive nlm_do_fopen() failures by presenting file handles that the underlying export rejects. After kzalloc_obj() succeeds in nlm_lookup_file(), the freshly allocated nlm_file is not yet inserted into nlm_files[]. The nlm_do_fopen() failure path jumps to out_unlock, which releases nlm_file_mutex and returns without freeing the allocation, so each failure leaks one nlm_file. Route the failure through out_free so kfree() runs before the function returns.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
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Affected Versions
Linux / Linux
e580323ac0b51ad10ec2e181d1f777479b7983e7 < bca74fff138429f3d5802865f38fc883d53a4f1a 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 < d7c677feb3aa1f42b1026d75a8ea61338b51e4fb 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 < 39f59bf67231ed2eb0cdf6337194360e964b609a 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 < ddfbd816273b4e9c9b836f5b8773664c6f40f807 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 < 1403f1221a35a6caf959bb7bf005741f17263c66 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 < 1161c4b5bd0048c8148e919f818a33cff3623ef0 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 < 3f2dc01b9cb516d4727a3b9263ee58c71ca00ba9 7f024fcd5c97dc70bb9121c80407cf3cf9be7159 < f16a1513452edb532fec81e591c64c320866719c 5.10.220 < 5.10.261
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/bca74fff138429f3d5802865f38fc883d53a4f1a git.kernel.org: https://git.kernel.org/stable/c/d7c677feb3aa1f42b1026d75a8ea61338b51e4fb git.kernel.org: https://git.kernel.org/stable/c/39f59bf67231ed2eb0cdf6337194360e964b609a git.kernel.org: https://git.kernel.org/stable/c/ddfbd816273b4e9c9b836f5b8773664c6f40f807 git.kernel.org: https://git.kernel.org/stable/c/1403f1221a35a6caf959bb7bf005741f17263c66 git.kernel.org: https://git.kernel.org/stable/c/1161c4b5bd0048c8148e919f818a33cff3623ef0 git.kernel.org: https://git.kernel.org/stable/c/3f2dc01b9cb516d4727a3b9263ee58c71ca00ba9 git.kernel.org: https://git.kernel.org/stable/c/f16a1513452edb532fec81e591c64c320866719c