CVE-2022-49275
In the Linux kernel, the following vulnerability has been resolved: can: m_can: m_can_tx_handler(): fix use after free of skb can_put_echo_skb() will clone skb then free the skb.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: can: m_can: m_can_tx_handler(): fix use after free of skb can_put_echo_skb() will clone skb then free the skb. Move the can_put_echo_skb() for the m_can version 3.0.x directly before the start of the xmit in hardware, similar to the 3.1.x branch.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.28% probability · 20th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/08d90846e438ac22dc56fc49ec0b0d195831c5edPatch
- https://git.kernel.org/stable/c/2e8e79c416aae1de224c0f1860f2e3350fa171f8Patch
- https://git.kernel.org/stable/c/31417073493f302d26ab66b3abc098d43227b835Patch
- https://git.kernel.org/stable/c/4db7d6f481990dd179a9ee7126dc7aa31ea4fff3Patch
- https://git.kernel.org/stable/c/7728d937ec403a1ceff9483023252d2cb8777f81Patch
- https://git.kernel.org/stable/c/869016a2938ac44f7b2fb7fc22c89edad99eb9b3Patch
- https://git.kernel.org/stable/c/d3892a747ab16b1eb6593a19d29f62c3b3f020acPatch
- https://git.kernel.org/stable/c/d93ed9aff64968f4cdad690712eb4f48ae537bdePatch
- https://git.kernel.org/stable/c/f43e64076ff1b1dcb893fb77ad1204105f710a29Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.