CVE-2025-39697High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: NFS: Fix a race when updating an existing write After nfs_lock_and_join_requests() tests for whether the request is still attached to the mapping, nothing prevents a c…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
NFS: Fix a race when updating an existing write
After nfs_lock_and_join_requests() tests for whether the request is still attached to the mapping, nothing prevents a call to nfs_inode_remove_request() from succeeding until we actually lock the page group. The reason is that whoever called nfs_inode_remove_request() doesn't necessarily have a lock on the page group head.
So in order to avoid races, let's take the page group lock earlier in nfs_lock_and_join_requests(), and hold it across the removal of the request in nfs_inode_remove_request().
Linux >= bd37d6fce184836bd5e7cd90ce40116a4fadaf2a < 0ff42a32784e0f2cb46a46da8e9f473538c13e1bLinux >= bd37d6fce184836bd5e7cd90ce40116a4fadaf2a < f230d40147cc37eb3aef4d50e2e2c06ea73d9a77Linux >= bd37d6fce184836bd5e7cd90ce40116a4fadaf2a < c32e3c71aaa1c1ba05da88605e2ddd493c58794fLinux >= bd37d6fce184836bd5e7cd90ce40116a4fadaf2a < 181feb41f0b268e6288bf9a7b984624d7fe2031dLinux >= bd37d6fce184836bd5e7cd90ce40116a4fadaf2a < 92278ae36935a54e65fef9f8ea8efe7e80481aceLinux >= bd37d6fce184836bd5e7cd90ce40116a4fadaf2a < 202a3432d21ac060629a760fff3b0a39859da3eaLinux >= bd37d6fce184836bd5e7cd90ce40116a4fadaf2a < 76d2e3890fb169168c73f2e4f8375c7cc24a765eLinux 4.14Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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