CVE-2024-38586
In the Linux kernel, the following vulnerability has been resolved: r8169: Fix possible ring buffer corruption on fragmented Tx packets.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). 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: r8169: Fix possible ring buffer corruption on fragmented Tx packets. An issue was found on the RTL8125b when transmitting small fragmented packets, whereby invalid entries were inserted into the transmit ring buffer, subsequently leading to calls to dma_unmap_single() with a null address. This was caused by rtl8169_start_xmit() not noticing changes to nr_frags which may occur when small packets are padded (to work around hardware quirks) in rtl8169_tso_csum_v2(). To fix this, postpone inspecting nr_frags until after any padding has been applied.
- 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
- 0.25% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/078d5b7500d70af2de6b38e226b03f0b932026a6Patch
- https://git.kernel.org/stable/c/0c48185a95309556725f818b82120bb74e9c627dPatch
- https://git.kernel.org/stable/c/54e7a0d111240c92c0f02ceba6eb8f26bf6d6479Patch
- https://git.kernel.org/stable/c/61c1c98e2607120ce9c3fa1bf75e6da909712b27Patch
- https://git.kernel.org/stable/c/68222d7b4b72aa321135cd453dac37f00ec41fd1Patch
- https://git.kernel.org/stable/c/b6d21cf40de103d63ae78551098a7c06af8c98ddPatch
- https://git.kernel.org/stable/c/c71e3a5cffd5309d7f84444df03d5b72600cc417Patch
- https://git.kernel.org/stable/c/078d5b7500d70af2de6b38e226b03f0b932026a6Patch
- https://git.kernel.org/stable/c/0c48185a95309556725f818b82120bb74e9c627dPatch
- https://git.kernel.org/stable/c/54e7a0d111240c92c0f02ceba6eb8f26bf6d6479Patch
- https://git.kernel.org/stable/c/61c1c98e2607120ce9c3fa1bf75e6da909712b27Patch
- https://git.kernel.org/stable/c/68222d7b4b72aa321135cd453dac37f00ec41fd1Patch
- https://git.kernel.org/stable/c/b6d21cf40de103d63ae78551098a7c06af8c98ddPatch
- https://git.kernel.org/stable/c/c71e3a5cffd5309d7f84444df03d5b72600cc417Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.