🛡️ CVE-2024-49568 on Ubuntu — linux
Description
In the Linux kernel, the following vulnerability has been resolved: net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg When receiving proposal msg in server, the fields v2_ext_offset/ eid_cnt/ism_gid_cnt in proposal msg are from the remote client and can not be fully trusted. Especially the field v2_ext_offset, once exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt before using them.
Distribution advisory
This page covers CVE-2024-49568 as tracked by Ubuntu, for the package linux. The fix is available in version 6.8.0-60.63; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack vector: Network — reachable from anywhere that can route to the service.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: None — an unauthenticated stranger can try it.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Unchanged — the damage stays inside the vulnerable component.
- Confidentiality impact: High — total loss, or loss the attacker controls.
- Integrity impact: High — total loss, or loss the attacker controls.
- Availability impact: High — total loss, or loss the attacker controls.
Affected software
UBUNTU-CVE-2024-49568 is recorded against 123 packages.
- linux (fixed in 6.8.0-60.63)
- linux-allwinner-5.19
- linux-aws (fixed in 6.8.0-1029.31)
- linux-aws-5.0
- linux-aws-5.11
- linux-aws-5.13
- linux-aws-5.15
- linux-aws-5.19
- linux-aws-5.3
- linux-aws-5.8
- linux-aws-6.2
- linux-aws-6.5
- linux-aws-6.8 (fixed in 6.8.0-1029.31~22.04.1)
- linux-aws-fips
- linux-azure (fixed in 6.8.0-1029.34)
- linux-azure-5.11
- linux-azure-5.13
- linux-azure-5.15
- linux-azure-5.19
- linux-azure-5.3
- linux-azure-5.8
- linux-azure-6.11 (fixed in 6.11.0-1012.12~24.04.1)
- linux-azure-6.2
- linux-azure-6.5
Show the remaining 99 packages
- linux-azure-6.8 (fixed in 6.8.0-1029.34~22.04.1)
- linux-azure-edge
- linux-azure-fde
- linux-azure-fde-5.19
- linux-azure-fde-6.2
- linux-azure-fips
- linux-azure-nvidia (fixed in 6.8.0-1016.17)
- linux-bluefield
- linux-fips (fixed in 6.8.0-78.78+fips1)
- linux-gcp (fixed in 6.8.0-1030.32)
- linux-gcp-5.11
- linux-gcp-5.13
- linux-gcp-5.15
- linux-gcp-5.19
- linux-gcp-5.3
- linux-gcp-5.8
- linux-gcp-6.11 (fixed in 6.11.0-1011.11~24.04.1)
- linux-gcp-6.2
- linux-gcp-6.5
- linux-gcp-6.8 (fixed in 6.8.0-1030.32~22.04.1)
- linux-gcp-fips
- linux-gke (fixed in 6.8.0-1025.29)
- linux-gke-4.15
- linux-gke-5.15
- linux-gke-5.4
- linux-gkeop (fixed in 6.8.0-1012.14)
- linux-gkeop-5.15
- linux-gkeop-5.4
- linux-hwe
- linux-hwe-5.11
- linux-hwe-5.13
- linux-hwe-5.15
- linux-hwe-5.19
- linux-hwe-5.8
- linux-hwe-6.11 (fixed in 6.11.0-21.21~24.04.1)
- linux-hwe-6.2
- linux-hwe-6.5
- linux-hwe-6.8 (fixed in 6.8.0-60.63~22.04.1)
- linux-hwe-edge
- linux-ibm (fixed in 6.8.0-1026.26)
- linux-ibm-5.15
- linux-ibm-6.8 (fixed in 6.8.0-1026.26~22.04.1)
- linux-intel-5.13
- linux-intel-iot-realtime
- linux-intel-iotg
- linux-intel-iotg-5.15
- linux-kvm
- linux-lowlatency (fixed in 6.8.0-60.63.1)
- linux-lowlatency-hwe-5.15
- linux-lowlatency-hwe-5.19
- linux-lowlatency-hwe-6.2
- linux-lowlatency-hwe-6.5
- linux-lowlatency-hwe-6.8 (fixed in 6.8.0-60.63.1~22.04.1)
- linux-nvidia (fixed in 6.8.0-1028.31)
- linux-nvidia-6.11 (fixed in 6.11.0-1007.7)
- linux-nvidia-6.2
- linux-nvidia-6.5
- linux-nvidia-6.8 (fixed in 6.8.0-1028.31~22.04.1)
- linux-nvidia-lowlatency (fixed in 6.8.0-1028.31.1)
- linux-nvidia-tegra (fixed in 6.8.0-1008.8)
- linux-nvidia-tegra-5.15
- linux-nvidia-tegra-igx
- linux-oem
- linux-oem-5.10
- linux-oem-5.13
- linux-oem-5.14
- linux-oem-5.17
- linux-oem-5.6
- linux-oem-6.0
- linux-oem-6.1
- linux-oem-6.11 (fixed in 6.11.0-1017.17)
- linux-oem-6.5
- linux-oem-6.8 (fixed in 6.8.0-1028.28)
- linux-oracle (fixed in 6.8.0-1026.27)
- linux-oracle-5.0
- linux-oracle-5.11
- linux-oracle-5.13
- linux-oracle-5.15
- linux-oracle-5.3
- linux-oracle-5.8
- linux-oracle-6.5
- linux-oracle-6.8 (fixed in 6.8.0-1026.27~22.04.1)
- linux-raspi (fixed in 6.8.0-1028.32)
- linux-raspi-realtime (fixed in 6.8.0-2023.24)
- linux-raspi2
- linux-realtime (fixed in 6.8.1-1022.23)
- linux-realtime-6.8 (fixed in 6.8.1-1022.23~22.04.1)
- linux-riscv (fixed in 6.8.0-60.63.1)
- linux-riscv-5.11
- linux-riscv-5.15
- linux-riscv-5.19
- linux-riscv-5.8
- linux-riscv-6.5
- linux-riscv-6.8 (fixed in 6.8.0-62.65~22.04.1)
- linux-starfive-5.19
- linux-starfive-6.2
- linux-starfive-6.5
- linux-xilinx (fixed in 6.8.0-1017.18)
- linux-xilinx-zynqmp
Timeline and source
Published on 11 January 2025 and last revised on 18 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
www.cve.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
git.kernel.org (Report)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
Other advisories for this package
linux has other advisories on record. If you are patching this one, these are worth checking on the same host:
- DEBIAN-CVE-2022-4994 (published 30 Jul 2026)
- CVE-2026-35233 (4.4 Medium, published 1 May 2026)
- CVE-2026-21996 (3.3 Low, published 1 May 2026)
- CVE-2026-21991 (5.5 Medium, published 16 Mar 2026)
- CGA-mcwh-q4vm-9f29 (published 29 Jan 2026)
- CGA-w6xv-3fg4-grm5 (published 29 Jan 2026)
- CGA-3vcx-q795-mc44 (published 7 Jan 2026)
- CGA-chv5-f6xr-gw4q (published 7 Jan 2026)
CVE-2024-49568 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 6.8.0-60.63 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 6.8.0-1029.31 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | — |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.8 | — | — |
| linux-aws-6.2 | — | — |
| linux-aws-6.5 | — | — |
| linux-aws-6.8 | — | 6.8.0-1029.31~22.04.1 |
| linux-aws-fips | — | — |
| linux-azure | — | 6.8.0-1029.34 |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | — |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.8 | — | — |
| linux-azure-6.11 | — | 6.11.0-1012.12~24.04.1 |
| linux-azure-6.2 | — | — |
| linux-azure-6.5 | — | — |
| linux-azure-6.8 | — | 6.8.0-1029.34~22.04.1 |
| linux-azure-edge | — | — |
| linux-azure-fde | — | — |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-azure-fips | — | — |
| linux-azure-nvidia | — | 6.8.0-1016.17 |
| linux-bluefield | — | — |
| linux-fips | — | 6.8.0-78.78+fips1 |
| linux-gcp | — | 6.8.0-1030.32 |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | — |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.11 | — | 6.11.0-1011.11~24.04.1 |
| linux-gcp-6.2 | — | — |
| linux-gcp-6.5 | — | — |
| linux-gcp-6.8 | — | 6.8.0-1030.32~22.04.1 |
| linux-gcp-fips | — | — |
| linux-gke | — | 6.8.0-1025.29 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 6.8.0-1012.14 |
| linux-gkeop-5.15 | — | — |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | — |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.11 | — | 6.11.0-21.21~24.04.1 |
| linux-hwe-6.2 | — | — |
| linux-hwe-6.5 | — | — |
| linux-hwe-6.8 | — | 6.8.0-60.63~22.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 6.8.0-1026.26 |
| linux-ibm-5.15 | — | — |
| linux-ibm-6.8 | — | 6.8.0-1026.26~22.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | — |
| linux-intel-iotg | — | — |
| linux-intel-iotg-5.15 | — | — |
| linux-kvm | — | — |
| linux-lowlatency | — | 6.8.0-60.63.1 |
| linux-lowlatency-hwe-5.15 | — | — |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.2 | — | — |
| linux-lowlatency-hwe-6.5 | — | — |
| linux-lowlatency-hwe-6.8 | — | 6.8.0-60.63.1~22.04.1 |
| linux-nvidia | — | 6.8.0-1028.31 |
| linux-nvidia-6.11 | — | 6.11.0-1007.7 |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-6.5 | — | — |
| linux-nvidia-6.8 | — | 6.8.0-1028.31~22.04.1 |
| linux-nvidia-lowlatency | — | 6.8.0-1028.31.1 |
| linux-nvidia-tegra | — | 6.8.0-1008.8 |
| linux-nvidia-tegra-5.15 | — | — |
| linux-nvidia-tegra-igx | — | — |
| linux-oem | — | — |
| linux-oem-5.10 | — | — |
| linux-oem-5.13 | — | — |
| linux-oem-5.14 | — | — |
| linux-oem-5.17 | — | — |
| linux-oem-5.6 | — | — |
| linux-oem-6.0 | — | — |
| linux-oem-6.1 | — | — |
| linux-oem-6.11 | — | 6.11.0-1017.17 |
| linux-oem-6.5 | — | — |
| linux-oem-6.8 | — | 6.8.0-1028.28 |
| linux-oracle | — | 6.8.0-1026.27 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | — |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.8 | — | — |
| linux-oracle-6.5 | — | — |
| linux-oracle-6.8 | — | 6.8.0-1026.27~22.04.1 |
| linux-raspi | — | 6.8.0-1028.32 |
| linux-raspi-realtime | — | 6.8.0-2023.24 |
| linux-raspi2 | — | — |
| linux-realtime | — | 6.8.1-1022.23 |
| linux-realtime-6.8 | — | 6.8.1-1022.23~22.04.1 |
| linux-riscv | — | 6.8.0-60.63.1 |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | — |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-riscv-6.5 | — | — |
| linux-riscv-6.8 | — | 6.8.0-62.65~22.04.1 |
| linux-starfive-5.19 | — | — |
| linux-starfive-6.2 | — | — |
| linux-starfive-6.5 | — | — |
| linux-xilinx | — | 6.8.0-1017.18 |
| linux-xilinx-zynqmp | — | — |
References
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Exploit Protection
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