CVE-2021-47260: NFS: Fix a potential NULL dereference in nfs_get_client()
First published: Tue May 21 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a potential NULL dereference in nfs_get_client() None of the callers are expecting NULL returns from nfs_get_client() so this code will lead to an Oops. It's better to return an error pointer. I expect that this is dead code so hopefully no one is affected.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=3.17<4.4.273 | |
| Linux Linux kernel | >=4.5<4.9.273 | |
| Linux Linux kernel | >=4.10<4.14.237 | |
| Linux Linux kernel | >=4.15<4.19.195 | |
| Linux Linux kernel | >=4.20<5.4.126 | |
| Linux Linux kernel | >=5.5<5.10.44 | |
| Linux Linux kernel | >=5.11<5.12.11 | |
| Linux Linux kernel | =5.13-rc1 | |
| Linux Linux kernel | =5.13-rc2 | |
| Linux Linux kernel | =5.13-rc3 | |
| Linux Linux kernel | =5.13-rc4 | |
| Linux Linux kernel | =5.13-rc5 |
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Reference Links
- https://git.kernel.org/stable/c/fab8bfdfb4aac9e4e8363666333adfdf21e89106
- https://git.kernel.org/stable/c/a979e601000982a3ca693171a6d4dffc47f8ad00
- https://git.kernel.org/stable/c/634f17ff1d59905eb3b4bbbc00805961d08beaee
- https://git.kernel.org/stable/c/4b380a7d84ef2ce3f4f5bec5d8706ed937ac6502
- https://git.kernel.org/stable/c/0057ecef9f324007c0ba5fcca4ddd131178ce78b
- https://git.kernel.org/stable/c/279ad78a00f8b9c5ff24171a59297187a3bd44b7
- https://git.kernel.org/stable/c/58ddf61f10b8f9b7b1341644bfee2f1c6508d4e1
- https://git.kernel.org/stable/c/09226e8303beeec10f2ff844d2e46d1371dc58e0
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- version/linux linux kernel/5.13-rc1
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- version/linux linux kernel/5.13-rc4
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