CVE-2021-47179
Vulnerability from cvelistv5
Published
2024-03-25 09:16
Modified
2024-12-19 07:36
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return() Commit de144ff4234f changes _pnfs_return_layout() to call pnfs_mark_matching_lsegs_return() passing NULL as the struct pnfs_layout_range argument. Unfortunately, pnfs_mark_matching_lsegs_return() doesn't check if we have a value here before dereferencing it, causing an oops. I'm able to hit this crash consistently when running connectathon basic tests on NFS v4.1/v4.2 against Ontap.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/39785761feadf261bc5101372b0b0bbaf6a94494Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42637ca25c7d7b5a92804a679af5192e8c1a9f48Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a421d218603ffa822a0b8045055c03eae394a7ebPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aba3c7795f51717ae316f3566442dee7cc3eeccbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b090d110e66636bca473fd8b98d5c97b555a965aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f9890652185b72b8de9ebeb4406037640b6e1b53Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/39785761feadf261bc5101372b0b0bbaf6a94494Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/42637ca25c7d7b5a92804a679af5192e8c1a9f48Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a421d218603ffa822a0b8045055c03eae394a7ebPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/aba3c7795f51717ae316f3566442dee7cc3eeccbPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b090d110e66636bca473fd8b98d5c97b555a965aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f9890652185b72b8de9ebeb4406037640b6e1b53Patch
Impacted products
Vendor Product Version
Linux Linux Version: 4.9.269   ≤
Version: 4.14.233   ≤
Version: 4.19.191   ≤
Version: 5.4.118   ≤
Version: 5.10.36   ≤
Version: 5.12.3   ≤
Show details on NVD website

To clipboard 

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