CVE-2026-53381
CVE CVE-2026-53381EUVD EUVD-2026-45503Published 2026-07-19T11:59:30.000ZLast changed 2026-08-05T12:35:21.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: virtiofs: fix UAF on submount umount iput() called from fuse_release_end() can Oops if the super block has already been destroyed. Normally this is prevented by waiting for num_waiting to go down to zero before commencing with super block shutdown. This only works, however, for the last submount instance, as the wait counter is per connection, not per superblock. Revert to using synchronous release requests for the auto_submounts case, which is virtiofs only at this time.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 26e5c67deb2e1f42a951f022fdf5b9f7eb747b01 <06b41351779e9289e8785694ade9042ae85e41ea; patch: 6.6.144; 26e5c67deb2e1f42a951f022fdf5b9f7eb747b01 <e09412a714bcd49375198427bb4aa005037a9d6f; patch: 5.15.211; patch: 7.1.2; 5.15.196 <5.15.211; 83b375c6efef69b1066ad2d79601221e7892745a <0b809199ff87c44487e516a725dd4be2185712ce; patch: 5.10.260; bfd17b6138df0122a95989457d8e18ce0b86165e <2181a09ba980f142650fb053666350ead4471cfe; cfd1aa3e2b71f3327cb373c45a897c9028c62b35 <1cc0e3a0c6499aaaa2f21a4fcbba388486afb25e; f19a1390af448d9e193c08e28ea5f727bf3c3049; 26e5c67deb2e1f42a951f022fdf5b9f7eb747b01 <39a2b95e008665c14f84e50ed411d898df7cd11b; patch: 6.1.177; 6.17.4 <6.18; patch: 6.12.95; patch: 7.2-rc1; 548e1f2bac1d4df91a6138f26bb4ab00323fd948 <607a1d4c42f649e6197567c0448fd9ebb316cd42; 26e5c67deb2e1f42a951f022fdf5b9f7eb747b01 <2abfd3ffbd9452f72535d96ff3982b3ab1f8f2f9; 6.18; 6.6.115 <6.6.144; 6.12.54 <6.12.95; patch: 7.0.14; patch: 0; b26923512dbe57ae4917bafd31396d22a9d1691a <97c4691653d145dcc699eca5d3aba3219a520f1f; 6.1.158 <6.1.177; patch: 6.18.37; 5.10.246 <5.10.260
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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