🛡️ CVE-2024-49997 on Ubuntu — linux
Description
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.
Distribution advisory
This page covers CVE-2024-49997 as tracked by Ubuntu, for the package linux. The fix is available in version 6.8.0-54.56; 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 none, availability none.
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:N/A:N
- 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: None.
- Availability impact: None.
Affected software
UBUNTU-CVE-2024-49997 is recorded against 134 packages.
- linux (fixed in 6.8.0-54.56)
- linux-allwinner-5.19
- linux-aws (fixed in 6.8.0-1023.25)
- linux-aws-5.0
- linux-aws-5.11
- linux-aws-5.13
- linux-aws-5.15 (fixed in 5.15.0-1073.79~20.04.1)
- linux-aws-5.19
- linux-aws-5.3
- linux-aws-5.4 (fixed in 5.4.0-1142.152~18.04.1)
- linux-aws-5.8
- linux-aws-6.2
- linux-aws-6.5
- linux-aws-6.8 (fixed in 6.8.0-1023.25~22.04.1)
- linux-aws-fips (fixed in 5.15.0-1073.79+fips1)
- linux-aws-hwe
- linux-azure (fixed in 6.8.0-1025.30)
- linux-azure-4.15
- linux-azure-5.11
- linux-azure-5.13
- linux-azure-5.15 (fixed in 5.15.0-1078.87~20.04.1)
- linux-azure-5.19
- linux-azure-5.3
- linux-azure-5.4 (fixed in 5.4.0-1145.152~18.04.1)
Show the remaining 110 packages
- 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
- linux-azure-6.8 (fixed in 6.8.0-1025.30~22.04.1)
- linux-azure-edge
- linux-azure-fde
- linux-azure-fde-5.19
- linux-azure-fde-6.2
- linux-azure-fips (fixed in 5.15.0-1078.87+fips1)
- linux-azure-nvidia (fixed in 6.8.0-1014.15)
- linux-bluefield
- linux-fips (fixed in 6.8.0-78.78+fips1)
- linux-gcp (fixed in 6.8.0-1024.26)
- linux-gcp-4.15
- linux-gcp-5.11
- linux-gcp-5.13
- linux-gcp-5.15 (fixed in 5.15.0-1072.80~20.04.1)
- linux-gcp-5.19
- linux-gcp-5.3
- linux-gcp-5.4 (fixed in 5.4.0-1143.152~18.04.1)
- 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 6.8.0-1024.26~22.04.1)
- linux-gcp-fips (fixed in 5.15.0-1072.80+fips1)
- linux-gke (fixed in 6.8.0-1019.23)
- linux-gke-4.15
- linux-gke-5.15
- linux-gke-5.4
- linux-gkeop (fixed in 6.8.0-1006.8)
- linux-gkeop-5.15
- linux-gkeop-5.4
- linux-hwe
- linux-hwe-5.11
- linux-hwe-5.13
- linux-hwe-5.15 (fixed in 5.15.0-127.137~20.04.1)
- linux-hwe-5.19
- linux-hwe-5.4 (fixed in 5.4.0-208.228~18.04.1)
- linux-hwe-5.8
- linux-hwe-6.2
- linux-hwe-6.5
- linux-hwe-6.8 (fixed in 6.8.0-57.59~22.04.1)
- linux-hwe-edge
- linux-ibm (fixed in 6.8.0-1022.22)
- linux-ibm-5.15 (fixed in 5.15.0-1066.69~20.04.1)
- linux-ibm-5.4 (fixed in 5.4.0-1086.91~18.04.1)
- linux-ibm-6.8 (fixed in 6.8.0-1023.23~22.04.1)
- linux-intel-5.13
- linux-intel-iot-realtime (fixed in 5.15.0-1066.68)
- linux-intel-iotg (fixed in 5.15.0-1071.77)
- linux-intel-iotg-5.15 (fixed in 5.15.0-1071.77~20.04.1)
- linux-iot (fixed in 5.4.0-1048.51)
- linux-kvm (fixed in 5.15.0-1070.75)
- linux-lowlatency (fixed in 6.8.0-54.56.1)
- linux-lowlatency-hwe-5.15 (fixed in 5.15.0-127.137~20.04.1)
- linux-lowlatency-hwe-5.19
- linux-lowlatency-hwe-6.2
- linux-lowlatency-hwe-6.5
- linux-lowlatency-hwe-6.8 (fixed in 6.8.0-54.56.1~22.04.1)
- linux-lts-xenial
- linux-nvidia (fixed in 6.8.0-1022.25)
- 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 6.8.0-1022.25~22.04.2)
- linux-nvidia-lowlatency (fixed in 6.8.0-1022.25.2)
- linux-nvidia-tegra (fixed in 5.15.0-1032.32)
- linux-nvidia-tegra-5.15 (fixed in 5.15.0-1032.32~20.04.1)
- linux-nvidia-tegra-igx (fixed in 5.15.0-1020.20)
- 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 6.11.0-1015.15)
- linux-oem-6.5
- linux-oem-6.8 (fixed in 6.8.0-1024.24)
- linux-oracle (fixed in 6.8.0-1020.21)
- linux-oracle-5.0
- linux-oracle-5.11
- linux-oracle-5.13
- linux-oracle-5.15 (fixed in 5.15.0-1071.77~20.04.1)
- linux-oracle-5.3
- linux-oracle-5.4 (fixed in 5.4.0-1138.147~18.04.1)
- linux-oracle-5.8
- linux-oracle-6.5
- linux-oracle-6.8 (fixed in 6.8.0-1020.21~22.04.1)
- linux-raspi (fixed in 6.8.0-1019.23)
- linux-raspi-5.4 (fixed in 5.4.0-1129.142~18.04.1)
- linux-raspi-realtime (fixed in 6.8.0-2018.19)
- linux-raspi2
- linux-realtime (fixed in 6.8.1-1016.17)
- linux-realtime-6.8 (fixed in 6.8.1-1016.17~22.04.1)
- linux-riscv (fixed in 6.8.0-53.55.1)
- linux-riscv-5.11
- linux-riscv-5.15 (fixed in 5.15.0-1069.73~20.04.1)
- linux-riscv-5.19
- linux-riscv-5.8
- linux-riscv-6.5
- linux-riscv-6.8 (fixed in 6.8.0-53.55.1~22.04.1)
- linux-starfive-5.19
- linux-starfive-6.2
- linux-starfive-6.5
- linux-xilinx (fixed in 6.8.0-1017.18)
- linux-xilinx-zynqmp (fixed in 5.15.0-1039.43)
Timeline and source
Published on 21 October 2024 and last revised on 19 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)
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)
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-w6xv-3fg4-grm5 (published 29 Jan 2026)
- CGA-mcwh-q4vm-9f29 (published 29 Jan 2026)
- CGA-6xjj-65cr-mc7v (published 7 Jan 2026)
- CGA-m3jq-vcq5-mqrx (published 7 Jan 2026)
CVE-2024-49997 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:N/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 6.8.0-54.56 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 6.8.0-1023.25 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1073.79~20.04.1 |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1142.152~18.04.1 |
| linux-aws-5.8 | — | — |
| linux-aws-6.2 | — | — |
| linux-aws-6.5 | — | — |
| linux-aws-6.8 | — | 6.8.0-1023.25~22.04.1 |
| linux-aws-fips | — | 5.15.0-1073.79+fips1 |
| linux-aws-hwe | — | — |
| linux-azure | — | 6.8.0-1025.30 |
| linux-azure-4.15 | — | — |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1078.87~20.04.1 |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1145.152~18.04.1 |
| 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 | — | 6.8.0-1025.30~22.04.1 |
| linux-azure-edge | — | — |
| linux-azure-fde | — | — |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-azure-fips | — | 5.15.0-1078.87+fips1 |
| linux-azure-nvidia | — | 6.8.0-1014.15 |
| linux-bluefield | — | — |
| linux-fips | — | 6.8.0-78.78+fips1 |
| linux-gcp | — | 6.8.0-1024.26 |
| linux-gcp-4.15 | — | — |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | 5.15.0-1072.80~20.04.1 |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1143.152~18.04.1 |
| 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 | — | 6.8.0-1024.26~22.04.1 |
| linux-gcp-fips | — | 5.15.0-1072.80+fips1 |
| linux-gke | — | 6.8.0-1019.23 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 6.8.0-1006.8 |
| linux-gkeop-5.15 | — | — |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-127.137~20.04.1 |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.4 | — | 5.4.0-208.228~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.2 | — | — |
| linux-hwe-6.5 | — | — |
| linux-hwe-6.8 | — | 6.8.0-57.59~22.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 6.8.0-1022.22 |
| linux-ibm-5.15 | — | 5.15.0-1066.69~20.04.1 |
| linux-ibm-5.4 | — | 5.4.0-1086.91~18.04.1 |
| linux-ibm-6.8 | — | 6.8.0-1023.23~22.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | 5.15.0-1066.68 |
| linux-intel-iotg | — | 5.15.0-1071.77 |
| linux-intel-iotg-5.15 | — | 5.15.0-1071.77~20.04.1 |
| linux-iot | — | 5.4.0-1048.51 |
| linux-kvm | — | 5.15.0-1070.75 |
| linux-lowlatency | — | 6.8.0-54.56.1 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-127.137~20.04.1 |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.2 | — | — |
| linux-lowlatency-hwe-6.5 | — | — |
| linux-lowlatency-hwe-6.8 | — | 6.8.0-54.56.1~22.04.1 |
| linux-lts-xenial | — | — |
| linux-nvidia | — | 6.8.0-1022.25 |
| linux-nvidia-6.11 | — | 6.11.0-1007.7 |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-6.5 | — | — |
| linux-nvidia-6.8 | — | 6.8.0-1022.25~22.04.2 |
| linux-nvidia-lowlatency | — | 6.8.0-1022.25.2 |
| linux-nvidia-tegra | — | 5.15.0-1032.32 |
| linux-nvidia-tegra-5.15 | — | 5.15.0-1032.32~20.04.1 |
| linux-nvidia-tegra-igx | — | 5.15.0-1020.20 |
| 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 | — | 6.11.0-1015.15 |
| linux-oem-6.5 | — | — |
| linux-oem-6.8 | — | 6.8.0-1024.24 |
| linux-oracle | — | 6.8.0-1020.21 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1071.77~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1138.147~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-oracle-6.5 | — | — |
| linux-oracle-6.8 | — | 6.8.0-1020.21~22.04.1 |
| linux-raspi | — | 6.8.0-1019.23 |
| linux-raspi-5.4 | — | 5.4.0-1129.142~18.04.1 |
| linux-raspi-realtime | — | 6.8.0-2018.19 |
| linux-raspi2 | — | — |
| linux-realtime | — | 6.8.1-1016.17 |
| linux-realtime-6.8 | — | 6.8.1-1016.17~22.04.1 |
| linux-riscv | — | 6.8.0-53.55.1 |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1069.73~20.04.1 |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-riscv-6.5 | — | — |
| linux-riscv-6.8 | — | 6.8.0-53.55.1~22.04.1 |
| linux-starfive-5.19 | — | — |
| linux-starfive-6.2 | — | — |
| linux-starfive-6.5 | — | — |
| linux-xilinx | — | 6.8.0-1017.18 |
| linux-xilinx-zynqmp | — | 5.15.0-1039.43 |
References
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