CVE-2024-38597
In the Linux kernel, the following vulnerability has been resolved: eth: sungem: remove .ndo_poll_controller to avoid deadlocks Erhard reports netpoll warnings from sungem: netpoll_send_skb_on_dev(): eth0 enabled interrupts in poll…
Does this matter?
Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: eth: sungem: remove .ndo_poll_controller to avoid deadlocks Erhard reports netpoll warnings from sungem: netpoll_send_skb_on_dev(): eth0 enabled interrupts in poll (gem_start_xmit+0x0/0x398) WARNING: CPU: 1 PID: 1 at net/core/netpoll.c:370 netpoll_send_skb+0x1fc/0x20c gem_poll_controller() disables interrupts, which may sleep. We can't sleep in netpoll, it has interrupts disabled completely. Strangely, gem_poll_controller() doesn't even poll the completions, and instead acts as if an interrupt has fired so it just schedules NAPI and exits. None of this has been necessary for years, since netpoll invokes NAPI directly.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.18% probability · 8th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/476adb3bbbd7886e8251d3b9ce2d3c3e680f35d6Patch
- https://git.kernel.org/stable/c/5de5aeb98f9a000adb0db184e32765e4815d860bPatch
- https://git.kernel.org/stable/c/6400d205fbbcbcf9b8510157e1f379c1d7e2e937Patch
- https://git.kernel.org/stable/c/ac0a230f719b02432d8c7eba7615ebd691da86f4Patch
- https://git.kernel.org/stable/c/e22b23f5888a065d084e87db1eec639c445e677fPatch
- https://git.kernel.org/stable/c/faf94f1eb8a34b2c31b2042051ef36f63420eccePatch
- https://git.kernel.org/stable/c/fbeeb55dbb33d562149c57e794f06b7414e44289Patch
- https://git.kernel.org/stable/c/476adb3bbbd7886e8251d3b9ce2d3c3e680f35d6Patch
- https://git.kernel.org/stable/c/5de5aeb98f9a000adb0db184e32765e4815d860bPatch
- https://git.kernel.org/stable/c/6400d205fbbcbcf9b8510157e1f379c1d7e2e937Patch
- https://git.kernel.org/stable/c/ac0a230f719b02432d8c7eba7615ebd691da86f4Patch
- https://git.kernel.org/stable/c/e22b23f5888a065d084e87db1eec639c445e677fPatch
- https://git.kernel.org/stable/c/faf94f1eb8a34b2c31b2042051ef36f63420eccePatch
- https://git.kernel.org/stable/c/fbeeb55dbb33d562149c57e794f06b7414e44289Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.