CVE-2024-26640
Linux TCP Zerocopy Receive Vulnerability
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)
INFO
Published Date :
March 18, 2024, 11:15 a.m.
Last Modified :
March 10, 2025, 4:58 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2024-26640 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-26640.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2024-26640 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-26640 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 10, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.15.149 *cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.7.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (excluding) 6.6.16 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 6.1.77 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.18 from (excluding) 5.10.210 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added Reference Type CVE: https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f Types: Mailing List, Patch Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Types: Mailing List -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 Added Reference https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 Added Reference https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e Added Reference https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e Added Reference https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 Added Reference https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 05, 2024
Action Type Old Value New Value Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 18, 2024
Action Type Old Value New Value Added 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) Added Reference kernel.org https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-26640 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-26640
weaknesses.