Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e399441de9115cd472b8ace6c517708273ca7997 before c0892cfb60a75e2c86ba8e2127b133f6549c12b3; affected e399441de9115cd472b8ace6c517708273ca7997 before 5e820d04c241c81a47e1940349018690e93d8167; affected e399441de9115cd472b8ace6c517708273ca7997 before bb0251991420c25e3ceeac40ea09250d79ed7ef0; affected e399441de9115cd472b8ace6c517708273ca7997 before acc173608ca7abe5dee8983086b44efd8b0dbc84; affected e399441de9115cd472b8ace6c517708273ca7997 before 18c5781ed8bc2f423c26ec93e47e2057cd76a783; affected e399441de9115cd472b8ace6c517708273ca7997 before bd764baf82bb46e958a0bd0b481630dd71313055; affected e399441de9115cd472b8ace6c517708273ca7997 before be5eb47ee3fea338efae1a5b678d6bb5f0fcc931; affected e399441de9115cd472b8ace6c517708273ca7997 before f49d0c3a8d56a7cda1628ae17341a4a42063563c |
| Linux / Linux | affected 4.10; unaffected 0 before 4.10; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c0892cfb60a75e2c86ba8e2127b133f6549c12b3
- https://git.kernel.org/stable/c/5e820d04c241c81a47e1940349018690e93d8167
- https://git.kernel.org/stable/c/bb0251991420c25e3ceeac40ea09250d79ed7ef0
- https://git.kernel.org/stable/c/acc173608ca7abe5dee8983086b44efd8b0dbc84
- https://git.kernel.org/stable/c/18c5781ed8bc2f423c26ec93e47e2057cd76a783
- https://git.kernel.org/stable/c/bd764baf82bb46e958a0bd0b481630dd71313055
- https://git.kernel.org/stable/c/be5eb47ee3fea338efae1a5b678d6bb5f0fcc931
- https://git.kernel.org/stable/c/f49d0c3a8d56a7cda1628ae17341a4a42063563c