CVE-2024-26640

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-26640
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)

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
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/718f446e60316bf606946f7f42367d691d21541e 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/f48bf9a83b1666d934247cb58a9887d7b3127b6f 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/718f446e60316bf606946f7f42367d691d21541e 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/f48bf9a83b1666d934247cb58a9887d7b3127b6f Mailing List Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Mailing List
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
History

10 Mar 2025, 16:58

Type Values Removed Values Added
CWE NVD-CWE-noinfo
CPE cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 - () https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 - Mailing List, Patch
References () https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 - () https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 - Mailing List, Patch
References () https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e - () https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e - Mailing List, Patch
References () https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e - () https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e - Mailing List, Patch
References () https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 - () https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 - Mailing List, Patch
References () https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f - () https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f - Mailing List, Patch
References () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - Mailing List
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Debian
Linux linux Kernel
Linux
Debian debian Linux

21 Nov 2024, 09:02

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
References () https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 - () https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 -
References () https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 - () https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 -
References () https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e - () https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e -
References () https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e - () https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e -
References () https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 - () https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 -
References () https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f - () https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f -

05 Nov 2024, 10:15

Type Values Removed Values Added
References
  • {'url': 'https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}

25 Jun 2024, 22:15

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: tcp: agregue controles de seguridad a rx zerocopy La intención de TCP rx zerocopy es mapear páginas inicialmente asignadas desde controladores NIC, no páginas propiedad de un fs. Este parche añade a can_map_frag() estas comprobaciones adicionales: - La página no debe ser compuesta. - página->mapeo debe ser NULL. Esto soluciona el pánico informado por ZhangPeng. syzbot pudo realizar un loopback de paquetes creados con sendfile(), asignando páginas propiedad de un archivo ext4 a 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$dir(0xffffffffffffff9c, &(0x7f00) 000000c0 )='./file0\x00', 0x181e42, 0x0) fallocate(r5, 0x0, 0x0, 0x85b8) sendfile(r4, r5, 0x0, 0x8ba0) getsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(r4, 0x6, 0x23, &(0x7f00000) 001c0)={ &(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000000440)=0x40) r6 = openat$dir(0xffffffffffffff9c, &(0x7f000) 00000c0)='./archivo0 \x00', 0x181e42, 0x0)

18 Mar 2024, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-03-18 11:15

Updated : 2025-03-10 16:58

NVD link : CVE-2024-26640

Mitre link : CVE-2024-26640

CVE.ORG link : CVE-2024-26640

JSON object : View

Products Affected

debian

  • debian_linux

linux

  • linux_kernel
CWE
NVD-CWE-noinfo