CVE-2022-49321

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Source
https://cve.org/CVERecord?id=CVE-2022-49321
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49321.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49321
Downstream
Related
Published
2025-02-26T02:10:46.186Z
Modified
2026-03-12T03:25:01.270475Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
xprtrdma: treat all calls not a bcall when bc_serv is NULL
Details

In the Linux kernel, the following vulnerability has been resolved:

xprtrdma: treat all calls not a bcall when bc_serv is NULL

When a rdma server returns a fault format reply, nfs v3 client may treats it as a bcall when bc service is not exist.

The debug message at rpcrdmabcreceive_call are,

[56579.837169] RPC: rpcrdmabcreceivecall: callback XID 00000001, length=20 [56579.837174] RPC: rpcrdmabcreceivecall: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04

After that, rpcrdmabcreceive_call will meets NULL pointer as,

[ 226.057890] BUG: unable to handle kernel NULL pointer dereference at 00000000000000c8 ... [ 226.058704] RIP: 0010:rawspinlock+0xc/0x20 ... [ 226.059732] Call Trace: [ 226.059878] rpcrdmabcreceivecall+0x138/0x327 [rpcrdma] [ 226.060011] _ibprocesscq+0x89/0x170 [ibcore] [ 226.060092] ibcqpollwork+0x26/0x80 [ibcore] [ 226.060257] processonework+0x1a7/0x360 [ 226.060367] ? createworker+0x1a0/0x1a0 [ 226.060440] workerthread+0x30/0x390 [ 226.060500] ? createworker+0x1a0/0x1a0 [ 226.060574] kthread+0x116/0x130 [ 226.060661] ? kthreadflushworkfn+0x10/0x10 [ 226.060724] retfromfork+0x35/0x40 ...

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49321.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
63cae47005af51c937f4cdcc4835f29075add2ba
Fixed
8e3943c50764dc7c5f25911970c3ff062ec1f18c
Fixed
998d35a2aff4b81a1c784f3aa45cd3afff6814c1
Fixed
da99331fa62131a38a0947a8204c5208de7b0454
Fixed
8dbae5affbdbf524b48000f9d357925bb001e5f4
Fixed
a3fc8051ee061e31db13e2fe011e8e0b71a7f815
Fixed
90c4f73104016748533a5707ecd15930fbeff402
Fixed
91784f3d77b73885e1b2e6b59d3cbf0de0a1126a
Fixed
11270e7ca268e8d61b5d9e5c3a54bd1550642c9c

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49321.json"