CVE-2024-40983 (GCVE-0-2024-40983)

Vulnerability from cvelistv5 – Published: 2024-07-12 12:33 – Updated: 2025-11-03 21:58
VLAI?
Title
tipc: force a dst refcount before doing decryption
Summary
In the Linux kernel, the following vulnerability has been resolved: tipc: force a dst refcount before doing decryption As it says in commit 3bc07321ccc2 ("xfrm: Force a dst refcount before entering the xfrm type handlers"): "Crypto requests might return asynchronous. In this case we leave the rcu protected region, so force a refcount on the skb's destination entry before we enter the xfrm type input/output handlers." On TIPC decryption path it has the same problem, and skb_dst_force() should be called before doing decryption to avoid a possible crash. Shuang reported this issue when this warning is triggered: [] WARNING: include/net/dst.h:337 tipc_sk_rcv+0x1055/0x1ea0 [tipc] [] Kdump: loaded Tainted: G W --------- - - 4.18.0-496.el8.x86_64+debug [] Workqueue: crypto cryptd_queue_worker [] RIP: 0010:tipc_sk_rcv+0x1055/0x1ea0 [tipc] [] Call Trace: [] tipc_sk_mcast_rcv+0x548/0xea0 [tipc] [] tipc_rcv+0xcf5/0x1060 [tipc] [] tipc_aead_decrypt_done+0x215/0x2e0 [tipc] [] cryptd_aead_crypt+0xdb/0x190 [] cryptd_queue_worker+0xed/0x190 [] process_one_work+0x93d/0x17e0
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < 3eb1b39627892c4e26cb0162b75725aa5fcc60c8 (git)
Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < 692803b39a36e63ac73208e0a3769ae6a2f9bc76 (git)
Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < 623c90d86a61e3780f682b32928af469c66ec4c2 (git)
Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < b57a4a2dc8746cea58a922ebe31b6aa629d69d93 (git)
Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < 6808b41371670c51feea14f63ade211e78100930 (git)
Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < 2ebe8f840c7450ecbfca9d18ac92e9ce9155e269 (git)
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    Linux Linux Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 5.10.221 , ≤ 5.10.* (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.96 , ≤ 6.1.* (semver)
Unaffected: 6.6.36 , ≤ 6.6.* (semver)
Unaffected: 6.9.7 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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