CVE-2026-31595

Summary

In the Linux kernel, the following vulnerability has been resolved:

PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup

Disable the delayed work before clearing BAR mappings and doorbells to avoid running the handler after resources have been torn down.

Unable to handle kernel paging request at virtual address ffff800083f46004 […] Internal error: Oops: 0000000096000007 [#1] SMP […] Call trace: epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P) process_one_work+0x154/0x3b0 worker_thread+0x2c8/0x400 kthread+0x148/0x210 ret_from_fork+0x10/0x20

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe35f56bb03304abc92c928b641af41ca372966bb < b2eb405bbced3a6e772545e1b74dbde37cee1f8faffected
LinuxLinuxe35f56bb03304abc92c928b641af41ca372966bb < ceb73484e7204f661f770069ecdf35f6e941879caffected
LinuxLinuxe35f56bb03304abc92c928b641af41ca372966bb < 6773cc24c004930903a57761132c1e7728907f8faffected
LinuxLinuxe35f56bb03304abc92c928b641af41ca372966bb < 9921cce25bfe4021f6e55ca995351eb967165297affected
LinuxLinuxe35f56bb03304abc92c928b641af41ca372966bb < 5999067140c67530a6cb6f41a8471596e60452cbaffected
LinuxLinuxe35f56bb03304abc92c928b641af41ca372966bb < fbb6c353fa2fb5f5f990eda034a1074b0356127eaffected
LinuxLinuxe35f56bb03304abc92c928b641af41ca372966bb < d799984233a50abd2667a7d17a9a710a3f10ebe2affected
LinuxLinuxe2b6ef72b7aea9d7d480d2df499bcd1c93247abbaffected
LinuxLinux5.15.153 < 5.16affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.175 <= 6.1.*unaffected
LinuxLinux6.6.136 <= 6.6.*unaffected
LinuxLinux6.12.83 <= 6.12.*unaffected
LinuxLinux6.18.24 <= 6.18.*unaffected
LinuxLinux6.19.14 <= 6.19.*unaffected
LinuxLinux7.0.1 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References