CVE-2026-90411

Summary

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

nvme-fc: unmap cmd_iu DMA on rsp_iu mapping failure in init_request

__nvme_fc_init_request() maps cmd_iu and then rsp_iu for DMA. If the rsp_iu mapping fails, the original code only recorded the error and fell through: it left the already-mapped cmd_iu unmapped and still marked the op as FCPOP_STATE_IDLE before returning. Since blk-mq does not call .exit_request() when .init_request() fails, the cmd_iu mapping is leaked for every op whose rsp_iu mapping fails.

Jump to an error path on rsp_iu mapping failure that unmaps cmd_iu and returns the error without marking the op idle, so it stays in the FCPOP_STATE_UNINIT state set by the initial memset().

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxe399441de9115cd472b8ace6c517708273ca7997 < c0892cfb60a75e2c86ba8e2127b133f6549c12b3affected
LinuxLinuxe399441de9115cd472b8ace6c517708273ca7997 < 5e820d04c241c81a47e1940349018690e93d8167affected
LinuxLinuxe399441de9115cd472b8ace6c517708273ca7997 < bb0251991420c25e3ceeac40ea09250d79ed7ef0affected
LinuxLinuxe399441de9115cd472b8ace6c517708273ca7997 < acc173608ca7abe5dee8983086b44efd8b0dbc84affected
LinuxLinuxe399441de9115cd472b8ace6c517708273ca7997 < 18c5781ed8bc2f423c26ec93e47e2057cd76a783affected
LinuxLinuxe399441de9115cd472b8ace6c517708273ca7997 < bd764baf82bb46e958a0bd0b481630dd71313055affected
LinuxLinuxe399441de9115cd472b8ace6c517708273ca7997 < be5eb47ee3fea338efae1a5b678d6bb5f0fcc931affected
LinuxLinuxe399441de9115cd472b8ace6c517708273ca7997 < f49d0c3a8d56a7cda1628ae17341a4a42063563caffected
LinuxLinux4.10affected
LinuxLinux0 < 4.10unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References