CVE-2022-49114
In the Linux kernel, the following vulnerability has been resolved: scsi: libfc: Fix use after free in fc_exch_abts_resp() fc_exch_release(ep) will decrease the ep's reference count.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: libfc: Fix use after free in fc_exch_abts_resp() fc_exch_release(ep) will decrease the ep's reference count. When the reference count reaches zero, it is freed. But ep is still used in the following code, which will lead to a use after free. Return after the fc_exch_release() call to avoid use after free.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/1d7effe5fff9d28e45e18ac3a564067c7ddfe898Patch
- https://git.kernel.org/stable/c/271add11994ba1a334859069367e04d2be2ebdd4Patch
- https://git.kernel.org/stable/c/412dd8299b02e4410fe77b8396953c1a8dde183aPatch
- https://git.kernel.org/stable/c/499d198494e77b6533251b9b909baf5c101129cbPatch
- https://git.kernel.org/stable/c/4a131d4ea8b581ac9b01d3a72754db4848be3232Patch
- https://git.kernel.org/stable/c/5cf2ce8967b0d98c8cfa4dc42ef4fcf080f5c836Patch
- https://git.kernel.org/stable/c/6044ad64f41c87382cfeeca281573d1886d80cbePatch
- https://git.kernel.org/stable/c/87909291762d08fdb60d19069d7a89b5b308d0efPatch
- https://git.kernel.org/stable/c/f581df412bc45c95176e3c808ee2839c05b2ab0cPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.