cve-2024-38544
Vulnerability from cvelistv5
Published
2024-06-19 13:35
Modified
2024-12-19 09:04
Severity ?
6.3 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt In rxe_comp_queue_pkt() an incoming response packet skb is enqueued to the resp_pkts queue and then a decision is made whether to run the completer task inline or schedule it. Finally the skb is dereferenced to bump a 'hw' performance counter. This is wrong because if the completer task is already running in a separate thread it may have already processed the skb and freed it which can cause a seg fault. This has been observed infrequently in testing at high scale. This patch fixes this by changing the order of enqueuing the packet until after the counter is accessed.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21b4c6d4d89030fd4657a8e7c8110fd941049794
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2b23b6097303ed0ba5f4bc036a1c07b6027af5c6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/30df4bef8b8e183333e9b6e9d4509d552c7da6eb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bbad88f111a1829f366c189aa48e7e58e57553fc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c91fb72a2ca6480d8d77262eef52dc5b178463a3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/de5a059e36657442b5637cc16df5163e435b9cb4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e0e14dd35d4242340c7346aac60c7ff8fbf87ffc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/faa8d0ecf6c9c7c2ace3ca3e552180ada6f75e19
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/21b4c6d4d89030fd4657a8e7c8110fd941049794
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2b23b6097303ed0ba5f4bc036a1c07b6027af5c6
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/30df4bef8b8e183333e9b6e9d4509d552c7da6eb
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bbad88f111a1829f366c189aa48e7e58e57553fc
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/faa8d0ecf6c9c7c2ace3ca3e552180ada6f75e19
Impacted products
Vendor Product Version
Linux Linux Version: 4.12
Show details on NVD website

To clipboard 

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}


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