CVE-2022-48794

MEDIUM
Published Jul 16, 2024 Modified Sep 24, 2025 CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: at86rf230: Stop leaking skb's Upon error the ieee802154_xmit_complete() helper is not called. Only ieee802154_wake_queue() is called manually. In the Tx case we then leak the skb structure. Free the skb structure upon error before returning when appropriate. As the 'is_tx = 0' cannot be moved in the complete handler because of a possible race between the delay in switching to STATE_RX_AACK_ON and a new interrupt, we introduce an intermediate 'was_tx' boolean just for this purpose. There is no Fixes tag applying here, many changes have been made on this area and the issue kind of always existed.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/0fd484644c68897c490a3307bfcc8bf767df5a43 https://git.kernel.org/stable/c/1c72f04d52b7200bb83426a9bed378668271ea4a https://git.kernel.org/stable/c/23b2a25382400168427ea278f3d8bf4ecfd333bf https://git.kernel.org/stable/c/455ef08d6e5473526fa6763f75a93f7198206966 https://git.kernel.org/stable/c/6312f6a53fd3ea38125dcaca5e3c9aa7d8a60cf7 https://git.kernel.org/stable/c/af649e5c95f56df64363bc46f6746b87819f9c0d https://git.kernel.org/stable/c/d2a1eaf51b7d4412319adb6acef114ba472d1692 https://git.kernel.org/stable/c/e5ce576d45bf72fd0e3dc37eff897bfcc488f6a9 https://git.kernel.org/stable/c/0fd484644c68897c490a3307bfcc8bf767df5a43 https://git.kernel.org/stable/c/1c72f04d52b7200bb83426a9bed378668271ea4a https://git.kernel.org/stable/c/23b2a25382400168427ea278f3d8bf4ecfd333bf https://git.kernel.org/stable/c/455ef08d6e5473526fa6763f75a93f7198206966 https://git.kernel.org/stable/c/6312f6a53fd3ea38125dcaca5e3c9aa7d8a60cf7 https://git.kernel.org/stable/c/af649e5c95f56df64363bc46f6746b87819f9c0d https://git.kernel.org/stable/c/d2a1eaf51b7d4412319adb6acef114ba472d1692 https://git.kernel.org/stable/c/e5ce576d45bf72fd0e3dc37eff897bfcc488f6a9

Frequently Asked Questions

What is CVE-2022-48794? +
In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: at86rf230: Stop leaking skb's Upon error the ieee802154_xmit_complete() helper is not called. Only ieee802154_wake_queue() is called manually. In the Tx case we then leak the skb structure. Free the skb structure upon error before returning when appropriate. As the 'is_tx = 0' cannot be moved in the complete handler because of a possible race between the delay in switching to STATE_RX_AACK_ON and a new interrupt, we introduce an intermediate 'was_tx' boolean just for this purpose. There is no Fixes tag applying here, many changes have been made on this area and the issue kind of always existed. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2022-48794? +
CVE-2022-48794 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2022-48794? +
CVE-2022-48794 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2022-48794? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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