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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-19T08:34:46.085Z

Updated: 2024-11-05T09:24:31.984Z

Reserved: 2024-05-17T13:50:33.113Z

Link: CVE-2024-35890

cve-icon Vulnrichment

Updated: 2024-08-02T03:21:48.729Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-19T09:15:10.077

Modified: 2024-11-21T09:21:08.290

Link: CVE-2024-35890

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-05-19T00:00:00Z

Links: CVE-2024-35890 - Bugzilla