CVE - CVE-2022-49698

CVE-ID
CVE-2022-49698	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: use get_random_u32 instead of prandom bh might occur while updating per-cpu rnd_state from user context, ie. local_out path. BUG: using smp_processor_id() in preemptible [00000000] code: nginx/2725 caller is nft_ng_random_eval+0x24/0x54 [nft_numgen] Call Trace: check_preemption_disabled+0xde/0xe0 nft_ng_random_eval+0x24/0x54 [nft_numgen] Use the random driver instead, this also avoids need for local prandom state. Moreover, prandom now uses the random driver since d4150779e60f ("random32: use real rng for non-deterministic randomness"). Based on earlier patch from Pablo Neira.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/15cc30ac2a8d7185f8ebf97dd1ddd90a7c79783b URL:https://git.kernel.org/stable/c/15cc30ac2a8d7185f8ebf97dd1ddd90a7c79783b MISC:https://git.kernel.org/stable/c/6ce71f83f798be7e1ca68707fec449fbecb38852 URL:https://git.kernel.org/stable/c/6ce71f83f798be7e1ca68707fec449fbecb38852 MISC:https://git.kernel.org/stable/c/b1fd94e704571f98b21027340eecf821b2bdffba URL:https://git.kernel.org/stable/c/b1fd94e704571f98b21027340eecf821b2bdffba MISC:https://git.kernel.org/stable/c/d0906b0fffc9f19bc42708ca3e84e2089088386c URL:https://git.kernel.org/stable/c/d0906b0fffc9f19bc42708ca3e84e2089088386c
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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