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Description

In the Linux kernel, the following vulnerability has been resolved: s390/ctcm: Fix double-kfree The function 'mpc_rcvd_sweep_req(mpcginfo)' is called conditionally from function 'ctcmpc_unpack_skb'. It frees passed mpcginfo. After that a call to function 'kfree' in function 'ctcmpc_unpack_skb' frees it again. Remove 'kfree' call in function 'mpc_rcvd_sweep_req(mpcginfo)'. Bug detected by the clang static analyzer.

PUBLISHED Reserved 2025-04-16 | Published 2025-12-04 | Updated 2025-12-04 | Assigner Linux

Product status

Default status
unaffected

467ddbbe7e749d558f13e640f50f546149c930b3 (git) before 06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2
affected

0c0b20587b9f25a2ad14db7f80ebe49bdf29920a (git) before 3b177b2ded563df16f6d5920671ffcfe5915d472
affected

0c0b20587b9f25a2ad14db7f80ebe49bdf29920a (git) before b9dbfb1b5699f9f1e4991f96741bdf9047147589
affected

0c0b20587b9f25a2ad14db7f80ebe49bdf29920a (git) before 7ff76f8dc6b550f8d16487bf3cebc278be720b5c
affected

0c0b20587b9f25a2ad14db7f80ebe49bdf29920a (git) before da02a1824884d6c84c5e5b5ac373b0c9e3288ec2
affected

36933de59f67029e5739a98393891f9b94f27e0f (git)
affected

d886b4292a1c5b4facdb2dfdc31f0fecc71df898 (git)
affected

4c9ba0fed125deba8416b995b0c274b0804c0c24 (git)
affected

4d3c6d741816539b57fa1110c3f765a8c176d7b4 (git)
affected

2bd57101c3ecf3f8c0da1d26c2b6ad511adc6d50 (git)
affected

ea0053af5dab4d63a9c44563973fb2f3bfd9eb2b (git)
affected

Default status
affected

5.18
affected

Any version before 5.18
unaffected

5.4.302 (semver)
unaffected

6.6.118 (semver)
unaffected

6.12.60 (semver)
unaffected

6.17.10 (semver)
unaffected

6.18 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/06f1dd1de0d33dbfbd2e1fc9fc57d8895f730de2

git.kernel.org/...c/3b177b2ded563df16f6d5920671ffcfe5915d472

git.kernel.org/...c/b9dbfb1b5699f9f1e4991f96741bdf9047147589

git.kernel.org/...c/7ff76f8dc6b550f8d16487bf3cebc278be720b5c

git.kernel.org/...c/da02a1824884d6c84c5e5b5ac373b0c9e3288ec2

cve.org (CVE-2025-40253)

nvd.nist.gov (CVE-2025-40253)