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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-26640 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: tcp: add sanity checks to rx zerocopy TCP rx zerocopy intent is to map pages initially allocated from NIC drivers, not pages owned by a fs. This patch adds to can_map_frag() these additional checks: - Page must not be a compound one. - page->mapping must be NULL. This fixes the panic reported by ZhangPeng. syzbot was able to loopback packets built with sendfile(), mapping pages owned by an ext4 file to TCP rx zerocopy. r3 = socket$inet_tcp(0x2, 0x1, 0x0) mmap(&(0x7f0000ff9000/0x4000)=nil, 0x4000, 0x0, 0x12, r3, 0x0) r4 = socket$inet_tcp(0x2, 0x1, 0x0) bind$inet(r4, &(0x7f0000000000)={0x2, 0x4e24, @multicast1}, 0x10) connect$inet(r4, &(0x7f00000006c0)={0x2, 0x4e24, @empty}, 0x10) r5 = openat$dir(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x181e42, 0x0) fallocate(r5, 0x0, 0x0, 0x85b8) sendfile(r4, r5, 0x0, 0x8ba0) getsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(r4, 0x6, 0x23, &(0x7f00000001c0)={&(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000000440)=0x40) r6 = openat$dir(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x181e42, 0x0)


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  5.5 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 Mailing List  Patch 
https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 Mailing List  Patch 
https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 Mailing List  Patch 
https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 Mailing List  Patch 
https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e Mailing List  Patch 
https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e Mailing List  Patch 
https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e Mailing List  Patch 
https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e Mailing List  Patch 
https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 Mailing List  Patch 
https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 Mailing List  Patch 
https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f Mailing List  Patch 
https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f Mailing List  Patch 
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Mailing List 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
4.18		Up to (excluding)
5.10.210
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
5.11		Up to (excluding)
5.15.149
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
5.16		Up to (excluding)
6.1.77
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
6.2		Up to (excluding)
6.6.16
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
6.7		Up to (excluding)
6.7.4
 cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-26640
NVD Published Date:
03/18/2024
NVD Last Modified:
03/10/2025
Source:
kernel.org