CVE-2022-50754

Summary

In the Linux kernel, the following vulnerability has been resolved:

apparmor: fix a memleak in multi_transaction_new()

In multi_transaction_new(), the variable t is not freed or passed out on the failure of copy_from_user(t->data, buf, size), which could lead to a memleak.

Fix this bug by adding a put_multi_transaction(t) in the error path.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1dea3b41e84c5923173fe654dcb758a5cb4a46e5 < 11d5fe7da67c3334cefc981297fd5defb78df15caffected
LinuxLinux1dea3b41e84c5923173fe654dcb758a5cb4a46e5 < 95e6adc6a7a4761ddf69ad713e55a06a3206309daffected
LinuxLinux1dea3b41e84c5923173fe654dcb758a5cb4a46e5 < eb0f78e28cbc8f97439c0a4c80ee5160c1df5ce6affected
LinuxLinux1dea3b41e84c5923173fe654dcb758a5cb4a46e5 < 935d86b29093e75b6c547d90b3979c2c2d23f1c4affected
LinuxLinux1dea3b41e84c5923173fe654dcb758a5cb4a46e5 < 775a37ffa9f4681c4ad84c8634a7eec8af7098d4affected
LinuxLinux1dea3b41e84c5923173fe654dcb758a5cb4a46e5 < 88989932c2269ea66074f52a6213598838f8b9e7affected
LinuxLinux1dea3b41e84c5923173fe654dcb758a5cb4a46e5 < 3d27a436e294ac5d7a51bd5348ca63a42a468b35affected
LinuxLinux1dea3b41e84c5923173fe654dcb758a5cb4a46e5 < c73275cf6834787ca090317f1d20dbfa3b7f05aaaffected
LinuxLinux4.13affected
LinuxLinux0 < 4.13unaffected
LinuxLinux4.14.303 <= 4.14.*unaffected
LinuxLinux4.19.270 <= 4.19.*unaffected
LinuxLinux5.4.229 <= 5.4.*unaffected
LinuxLinux5.10.163 <= 5.10.*unaffected
LinuxLinux5.15.86 <= 5.15.*unaffected
LinuxLinux6.0.16 <= 6.0.*unaffected
LinuxLinux6.1.2 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

References