CVE-2026-98587firewire: cdev: fix back-transition for iso_resource_auto client resource
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: firewire: cdev: fix back-transition for iso_resource_auto client resource The todo member of iso_resource_auto structure represents the state of the client resource and normally transitions in the following order: ISO_RES_AUTO_ALLOC -> ISO_RES_AUTO_REALLOC -> ISO_RES_AUTO_DEALLOC However, concurrent access from the work item and the file descriptor release function can cause the state to transition backwards from ISO_RES_AUTO_DEALLOC to ISO_RES_AUTO_REALLOC. Prevent the back-transition by checking the current state before updating it in the work item.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from fcabbf40fae501379b4f3a057febe92d4b0ebdd8 before ee1df60a0d0e8ab4b00137135733bdadd6d33dab; from fcabbf40fae501379b4f3a057febe92d4b0ebdd8 before c6b51091cafff9ce6c03c1416aa13864d17ab97c | CNA record |
References
- https://git.kernel.org/stable/c/ee1df60a0d0e8ab4b00137135733bdadd6d33dab
- https://git.kernel.org/stable/c/c6b51091cafff9ce6c03c1416aa13864d17ab97c
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.