apparmor: fix a memleak in multi_transaction_new()
Published Dec 24, 2025
No CVSS score
EPSS 0.26%
Description
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 products
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- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
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- Version 4.13StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<4.13
- Version 4.14.303StatusunaffectedConstraints<=4.14.*
- Version 4.19.270StatusunaffectedConstraints<=4.19.*
- Version 5.10.163StatusunaffectedConstraints<=5.10.*
- Version 5.15.86StatusunaffectedConstraints<=5.15.*
- Version 5.4.229StatusunaffectedConstraints<=5.4.*
- Version 6.0.16StatusunaffectedConstraints<=6.0.*
- Version 6.1.2StatusunaffectedConstraints<=6.1.*
- Version 6.2StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
| |||||||||||||||||||||||||||||||||
| Linux | Linux | affected |
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No data.
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
No CWE recorded.
References (14)
- https://access.redhat.com/security/cve/CVE-2022-50754 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2425193 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-55807 Advisory
- https://git.kernel.org/stable/c/11d5fe7da67c3334cefc981297fd5defb78df15c
- https://git.kernel.org/stable/c/3d27a436e294ac5d7a51bd5348ca63a42a468b35
- https://git.kernel.org/stable/c/775a37ffa9f4681c4ad84c8634a7eec8af7098d4
- https://git.kernel.org/stable/c/88989932c2269ea66074f52a6213598838f8b9e7
- https://git.kernel.org/stable/c/935d86b29093e75b6c547d90b3979c2c2d23f1c4
- https://git.kernel.org/stable/c/95e6adc6a7a4761ddf69ad713e55a06a3206309d
- https://git.kernel.org/stable/c/c73275cf6834787ca090317f1d20dbfa3b7f05aa
- https://git.kernel.org/stable/c/eb0f78e28cbc8f97439c0a4c80ee5160c1df5ce6
- https://lore.kernel.org/linux-cve-announce/2025122453-CVE-2022-50754-ec9a@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2022-50754
- https://www.cve.org/CVERecord?id=CVE-2022-50754
Change history (0)
No recorded changes yet.