Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix SECINFO_NO_NAME decode error cleanup nfsd4_decode_secinfo_no_name() currently initializes sin_exp after decoding sin_style. If the XDR stream is truncated, the decoder returns nfserr_bad_xdr before sin_exp is initialized. Since commit 3fdc54646234 ("NFSD: Reduce amount of struct nfsd4_compoundargs that needs clearing"), the inline iops array is not cleared between RPC calls. A failed SECINFO_NO_NAME decode can therefore leave sin_exp holding stale union contents from a previous operation. The error response path still invokes nfsd4_secinfo_no_name_release(), which calls exp_put() on a non-NULL sin_exp. Initialize sin_exp before the first failable decode step, matching nfsd4_decode_secinfo().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5e76b25d7cc82c148d391c0c43b884e6427cb302 before 8836405abdc53ca3dd5fc68b2cf6f8f012fad011; affected 07b68ff5c71cf4ed5443016d8eb116863c0a4d88 before 49de5d31dd8fdebf78bdeaf196b0ca5cd5c75439; affected 3fdc546462348b8a497c72bc894e0cde9f10fc40 before 5ec37edcb534f3fc92304be236d37f08e6545585; affected 3fdc546462348b8a497c72bc894e0cde9f10fc40 before 1e04be34cafae119e82bcaccd6d28a20f72a3647; affected 3fdc546462348b8a497c72bc894e0cde9f10fc40 before 161d1aaeb04d620d3692639700512bb5038c1e10; affected 3fdc546462348b8a497c72bc894e0cde9f10fc40 before c8a24effd96d4779e2ad779654682304491c55a5; affected 3fdc546462348b8a497c72bc894e0cde9f10fc40 before 46eb17d45be69d28c7a23ea03283b207426a8232; affected 3fdc546462348b8a497c72bc894e0cde9f10fc40 before 9e18e83b8846a5c3fe13fc8a464b4865d33996c6; affected 5.10.220 before 5.10.260; affected 5.15.154 before 5.15.211 |
| Linux / Linux | affected 6.1; unaffected 0 before 6.1; unaffected 5.10.260 through 5.10.*; unaffected 5.15.211 through 5.15.*; unaffected 6.1.177 through 6.1.*; unaffected 6.6.144 through 6.6.*; unaffected 6.12.95 through 6.12.*; unaffected 6.18.38 through 6.18.*; unaffected 7.1.3 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8836405abdc53ca3dd5fc68b2cf6f8f012fad011
- https://git.kernel.org/stable/c/49de5d31dd8fdebf78bdeaf196b0ca5cd5c75439
- https://git.kernel.org/stable/c/5ec37edcb534f3fc92304be236d37f08e6545585
- https://git.kernel.org/stable/c/1e04be34cafae119e82bcaccd6d28a20f72a3647
- https://git.kernel.org/stable/c/161d1aaeb04d620d3692639700512bb5038c1e10
- https://git.kernel.org/stable/c/c8a24effd96d4779e2ad779654682304491c55a5
- https://git.kernel.org/stable/c/46eb17d45be69d28c7a23ea03283b207426a8232
- https://git.kernel.org/stable/c/9e18e83b8846a5c3fe13fc8a464b4865d33996c6
ADP enrichment
No English description supplied.
No references supplied.