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
Metrics
Affected Vendors & Products
References
History
Wed, 06 Nov 2024 02:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
CPEs | cpe:/a:redhat:enterprise_linux:8::nfv cpe:/o:redhat:enterprise_linux:8 |
Thu, 12 Sep 2024 08:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
Wed, 11 Sep 2024 13:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
Fri, 06 Sep 2024 13:45:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Redhat rhel Eus
|
|
CPEs | cpe:/a:redhat:rhel_eus:9.2 cpe:/a:redhat:rhel_eus:9.2::nfv |
|
Vendors & Products |
Redhat rhel Eus
|
Wed, 28 Aug 2024 22:45:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Redhat
Redhat enterprise Linux |
|
CPEs | cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
Vendors & Products |
Redhat
Redhat enterprise Linux |
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-07-12T12:33:57.263Z
Updated: 2024-11-05T09:34:28.348Z
Reserved: 2024-07-12T12:17:45.604Z
Link: CVE-2024-40983
Vulnrichment
Updated: 2024-08-02T04:39:56.020Z
NVD
Status : Awaiting Analysis
Published: 2024-07-12T13:15:19.893
Modified: 2024-11-21T09:32:00.260
Link: CVE-2024-40983
Redhat