CVE-2022-49321
Linux RPCrdma NULL Pointer Dereference Vulnerability
Description
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 rpcrdma_bc_receive_call are, [56579.837169] RPC: rpcrdma_bc_receive_call: callback XID 00000001, length=20 [56579.837174] RPC: rpcrdma_bc_receive_call: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 After that, rpcrdma_bc_receive_call will meets NULL pointer as, [ 226.057890] BUG: unable to handle kernel NULL pointer dereference at 00000000000000c8 ... [ 226.058704] RIP: 0010:_raw_spin_lock+0xc/0x20 ... [ 226.059732] Call Trace: [ 226.059878] rpcrdma_bc_receive_call+0x138/0x327 [rpcrdma] [ 226.060011] __ib_process_cq+0x89/0x170 [ib_core] [ 226.060092] ib_cq_poll_work+0x26/0x80 [ib_core] [ 226.060257] process_one_work+0x1a7/0x360 [ 226.060367] ? create_worker+0x1a0/0x1a0 [ 226.060440] worker_thread+0x30/0x390 [ 226.060500] ? create_worker+0x1a0/0x1a0 [ 226.060574] kthread+0x116/0x130 [ 226.060661] ? kthread_flush_work_fn+0x10/0x10 [ 226.060724] ret_from_fork+0x35/0x40 ...
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 13, 2025, 10:02 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49321.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49321 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49321 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 13, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 from (excluding) 5.4.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 from (excluding) 4.19.247 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18 from (excluding) 5.18.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 5.17.15 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.15.47 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 from (excluding) 5.10.122 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 4.14.283 Added Reference Type kernel.org: https://git.kernel.org/stable/c/11270e7ca268e8d61b5d9e5c3a54bd1550642c9c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8dbae5affbdbf524b48000f9d357925bb001e5f4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8e3943c50764dc7c5f25911970c3ff062ec1f18c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/90c4f73104016748533a5707ecd15930fbeff402 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/91784f3d77b73885e1b2e6b59d3cbf0de0a1126a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/998d35a2aff4b81a1c784f3aa45cd3afff6814c1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a3fc8051ee061e31db13e2fe011e8e0b71a7f815 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/da99331fa62131a38a0947a8204c5208de7b0454 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description 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 rpcrdma_bc_receive_call are, [56579.837169] RPC: rpcrdma_bc_receive_call: callback XID 00000001, length=20 [56579.837174] RPC: rpcrdma_bc_receive_call: 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04 After that, rpcrdma_bc_receive_call will meets NULL pointer as, [ 226.057890] BUG: unable to handle kernel NULL pointer dereference at 00000000000000c8 ... [ 226.058704] RIP: 0010:_raw_spin_lock+0xc/0x20 ... [ 226.059732] Call Trace: [ 226.059878] rpcrdma_bc_receive_call+0x138/0x327 [rpcrdma] [ 226.060011] __ib_process_cq+0x89/0x170 [ib_core] [ 226.060092] ib_cq_poll_work+0x26/0x80 [ib_core] [ 226.060257] process_one_work+0x1a7/0x360 [ 226.060367] ? create_worker+0x1a0/0x1a0 [ 226.060440] worker_thread+0x30/0x390 [ 226.060500] ? create_worker+0x1a0/0x1a0 [ 226.060574] kthread+0x116/0x130 [ 226.060661] ? kthread_flush_work_fn+0x10/0x10 [ 226.060724] ret_from_fork+0x35/0x40 ... Added Reference https://git.kernel.org/stable/c/11270e7ca268e8d61b5d9e5c3a54bd1550642c9c Added Reference https://git.kernel.org/stable/c/8dbae5affbdbf524b48000f9d357925bb001e5f4 Added Reference https://git.kernel.org/stable/c/8e3943c50764dc7c5f25911970c3ff062ec1f18c Added Reference https://git.kernel.org/stable/c/90c4f73104016748533a5707ecd15930fbeff402 Added Reference https://git.kernel.org/stable/c/91784f3d77b73885e1b2e6b59d3cbf0de0a1126a Added Reference https://git.kernel.org/stable/c/998d35a2aff4b81a1c784f3aa45cd3afff6814c1 Added Reference https://git.kernel.org/stable/c/a3fc8051ee061e31db13e2fe011e8e0b71a7f815 Added Reference https://git.kernel.org/stable/c/da99331fa62131a38a0947a8204c5208de7b0454
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49321 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49321
weaknesses.