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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-46676 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Add poll mod list filling check In case of im_protocols value is 1 and tm_protocols value is 0 this combination successfully passes the check 'if (!im_protocols && !tm_protocols)' in the nfc_start_poll(). But then after pn533_poll_create_mod_list() call in pn533_start_poll() poll mod list will remain empty and dev->poll_mod_count will remain 0 which lead to division by zero. Normally no im protocol has value 1 in the mask, so this combination is not expected by driver. But these protocol values actually come from userspace via Netlink interface (NFC_CMD_START_POLL operation). So a broken or malicious program may pass a message containing a "bad" combination of protocol parameter values so that dev->poll_mod_count is not incremented inside pn533_poll_create_mod_list(), thus leading to division by zero. Call trace looks like: nfc_genl_start_poll() nfc_start_poll() ->start_poll() pn533_start_poll() Add poll mod list filling check. Found by Linux Verification Center (linuxtesting.org) with SVACE.


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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Hyperlink Resource
https://git.kernel.org/stable/c/56ad559cf6d87f250a8d203b555dfc3716afa946 Patch 
https://git.kernel.org/stable/c/64513d0e546a1f19e390f7e5eba3872bfcbdacf5 Patch 
https://git.kernel.org/stable/c/7535db0624a2dede374c42040808ad9a9101d723 Patch 
https://git.kernel.org/stable/c/7ecd3dd4f8eecd3309432156ccfe24768e009ec4 Patch 
https://git.kernel.org/stable/c/8ddaea033de051ed61b39f6b69ad54a411172b33 Patch 
https://git.kernel.org/stable/c/c5e05237444f32f6cfe5d907603a232c77a08b31 Patch 
https://git.kernel.org/stable/c/febccb39255f9df35527b88c953b2e0deae50e53 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-369 Divide By Zero cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-46676
NVD Published Date:
09/13/2024
NVD Last Modified:
09/23/2024
Source:
kernel.org