CVE-2024-40983

tipc: force a dst refcount before doing decryption

CRITICAL 9.8

At a glance

Source
NVD
EPSS
EPSS 0.88 % · percentile 59 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

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

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 < 3eb1b39627892c4e26cb0162b75725aa5fcc60c8 ; affected fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 < 692803b39a36e63ac73208e0a3769ae6a2f9bc76 ; affected fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 < 623c90d86a61e3780f682b32928af469c66ec4c2 ; affected fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 < b57a4a2dc8746cea58a922ebe31b6aa629d69d93 ; affected fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 < 6808b41371670c51feea14f63ade211e78100930 ; affected fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 < 2ebe8f840c7450ecbfca9d18ac92e9ce9155e269
Linux · Linuxaffected 5.5 ; unaffected 0 < 5.5 ; unaffected 5.10.221 ≤ 5.10.* ; unaffected 5.15.162 ≤ 5.15.* ; unaffected 6.1.96 ≤ 6.1.* ; unaffected 6.6.36 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD