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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-41042 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: prefer nft_chain_validate nft_chain_validate already performs loop detection because a cycle will result in a call stack overflow (ctx->level >= NFT_JUMP_STACK_SIZE). It also follows maps via ->validate callback in nft_lookup, so there appears no reason to iterate the maps again. nf_tables_check_loops() and all its helper functions can be removed. This improves ruleset load time significantly, from 23s down to 12s. This also fixes a crash bug. Old loop detection code can result in unbounded recursion: BUG: TASK stack guard page was hit at .... Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN CPU: 4 PID: 1539 Comm: nft Not tainted 6.10.0-rc5+ #1 [..] with a suitable ruleset during validation of register stores. I can't see any actual reason to attempt to check for this from nft_validate_register_store(), at this point the transaction is still in progress, so we don't have a full picture of the rule graph. For nf-next it might make sense to either remove it or make this depend on table->validate_state in case we could catch an error earlier (for improved error reporting to userspace).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1947e4c3346faa8ac7e343652c0fd3b3e394202f kernel.org Patch 
https://git.kernel.org/stable/c/31c35f9f89ef585f1edb53e17ac73a0ca4a9712b kernel.org Patch 
https://git.kernel.org/stable/c/717c91c6ed73e248de6a15bc53adefb81446c9d0 kernel.org Patch 
https://git.kernel.org/stable/c/8246b7466c8da49d0d9e85e26cbd69dd6d3e3d1e kernel.org Patch 
https://git.kernel.org/stable/c/9df785aeb7dcc8efd1d4110bb27d26005298ebae CVE, kernel.org Patch 
https://git.kernel.org/stable/c/b6b6e430470e1c3c5513311cb35a15a205595abe kernel.org Patch 
https://git.kernel.org/stable/c/cd4348e0a50286282c314ad6d2b0740e7c812c24 kernel.org Patch 
https://git.kernel.org/stable/c/cff3bd012a9512ac5ed858d38e6ed65f6391008c CVE, kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST  

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-41042
NVD Published Date:
07/29/2024
NVD Last Modified:
09/25/2025
Source:
kernel.org