High severity · published Feb 26, 2025
CVE-2022-49114
scsi: libfc: Fix use after free in fc_exch_abts_resp()
8.8
CVSS
0.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 4.9.311; 4.10 before 4.14.276; 4.15 before 4.19.238; 4.20 before 5.4.189; 5.5 before 5.10.111; 5.11 before 5.15.34; +2 more · source: NVD
LI
Linux · Linux
42e9a92fe6a9095bd68a379aaec7ad2be0337f7a before 4a131d4ea8b581ac9b01d3a72754db4848be3232; 42e9a92fe6a9095bd68a379aaec7ad2be0337f7a before 499d198494e77b6533251b9b909baf5c101129cb; 42e9a92fe6a9095bd68a379aaec7ad2be0337f7a before 6044ad64f41c87382cfeeca281573d1886d80cbe; 42e9a92fe6a9095bd68a379aaec7ad2be0337f7a before 5cf2ce8967b0d98c8cfa4dc42ef4fcf080f5c836; 42e9a92fe6a9095bd68a379aaec7ad2be0337f7a before 1d7effe5fff9d28e45e18ac3a564067c7ddfe898; 42e9a92fe6a9095bd68a379aaec7ad2be0337f7a before f581df412bc45c95176e3c808ee2839c05b2ab0c; +4 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-49114
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-49114
Patch
https://git.kernel.org/stable/c/1d7effe5fff9d28e45e18ac3a564067c7ddfe898
Patch
https://git.kernel.org/stable/c/271add11994ba1a334859069367e04d2be2ebdd4
Patch
https://git.kernel.org/stable/c/412dd8299b02e4410fe77b8396953c1a8dde183a
Patch
https://git.kernel.org/stable/c/499d198494e77b6533251b9b909baf5c101129cb
Patch
https://git.kernel.org/stable/c/4a131d4ea8b581ac9b01d3a72754db4848be3232
Patch
https://git.kernel.org/stable/c/5cf2ce8967b0d98c8cfa4dc42ef4fcf080f5c836
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