CVE-2024-35890 The advisory has been revoked - it doesn't affect any version of package kernel-rt-modules-internal (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-KERNELRTMODULESINTERNAL-6920643
- published20 May 2024
- disclosed19 May 2024
Introduced: 19 May 2024
CVE-2024-35890 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:8.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-internal package and not the kernel-rt-modules-internal package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
gro: fix ownership transfer
If packets are GROed with fraglist they might be segmented later on and continue their journey in the stack. In skb_segment_list those skbs can be reused as-is. This is an issue as their destructor was removed in skb_gro_receive_list but not the reference to their socket, and then they can't be orphaned. Fix this by also removing the reference to the socket.
For example this could be observed,
kernel BUG at include/linux/skbuff.h:3131! (skb_orphan) RIP: 0010:ip6_rcv_core+0x11bc/0x19a0 Call Trace: ipv6_list_rcv+0x250/0x3f0 __netif_receive_skb_list_core+0x49d/0x8f0 netif_receive_skb_list_internal+0x634/0xd40 napi_complete_done+0x1d2/0x7d0 gro_cell_poll+0x118/0x1f0
A similar construction is found in skb_gro_receive, apply the same change there.
References
- https://access.redhat.com/security/cve/CVE-2024-35890
- https://git.kernel.org/stable/c/2eeab8c47c3c0276e0746bc382f405c9a236a5ad
- https://git.kernel.org/stable/c/5b3b67f731296027cceb3efad881ae281213f86f
- https://git.kernel.org/stable/c/d225b0ac96dc40d7e8ae2bc227eb2c56e130975f
- https://git.kernel.org/stable/c/ed4cccef64c1d0d5b91e69f7a8a6697c3a865486
- https://git.kernel.org/stable/c/fc126c1d51e9552eacd2d717b9ffe9262a8a4cd6