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Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49114scsi: libfc: Fix use after free in fc_exch_abts_resp()

High 8.8

In plain English

A high-severity use-after-free in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 70.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.17.3-1DEBIAN-CVE-2022-49114
Debian:13linux5.17.3-1DEBIAN-CVE-2022-49114
Debian:14linux5.17.3-1DEBIAN-CVE-2022-49114
Ubuntu:22.04:LTSlinux5.15.0-37.39UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-aws5.15.0-1011.14UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-azure5.15.0-1010.12UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-gcp5.15.0-1008.12UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-gke5.15.0-1008.10UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-ibm5.15.0-1007.8UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1008.11UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-kvm5.15.0-1010.11UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-37.39UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-oracle5.15.0-1009.12UBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-raspi5.15.0-1011.13UBUNTU-CVE-2022-49114
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49114
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49114

Affected products (as reported)

VendorProductVersions
Linux Linux 42e9a92fe6a9095bd68a379aaec7ad2be0337f7a – before 4a131d4ea8b581ac9b01d3a72754db4848be323242e9a92fe6a9095bd68a379aaec7ad2be0337f7a – before 499d198494e77b6533251b9b909baf5c101129cb42e9a92fe6a9095bd68a379aaec7ad2be0337f7a – before 6044ad64f41c87382cfeeca281573d1886d80cbe42e9a92fe6a9095bd68a379aaec7ad2be0337f7a – before 5cf2ce8967b0d98c8cfa4dc42ef4fcf080f5c83642e9a92fe6a9095bd68a379aaec7ad2be0337f7a – before 1d7effe5fff9d28e45e18ac3a564067c7ddfe89842e9a92fe6a9095bd68a379aaec7ad2be0337f7a – before f581df412bc45c95176e3c808ee2839c05b2ab0c42e9a92fe6a9095bd68a379aaec7ad2be0337f7a – before 87909291762d08fdb60d19069d7a89b5b308d0ef42e9a92fe6a9095bd68a379aaec7ad2be0337f7a – before 412dd8299b02e4410fe77b8396953c1a8dde183a
Linux Linux 2.6.29

Weakness: CWE-416 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References