UBUNTU-CVE-2026-46300: High severity ubuntu/linux-hwe-edge vulnerability

Q: Which Ubuntu kernel packages are identified as affected?

The listed Ubuntu kernel packages are linux-realtime, linux-azure, linux-gcp, linux-azure-fde, linux-riscv, linux, linux-aws, and linux-oracle.

Q: What conditions are needed for exploitation?

An attacker needs local access and low privileges; no user interaction is required. The vulnerable path involves TCP receive coalescing moving shared paged fragments into an skb and subsequent ESP input decrypting the skb in place.

Q: What is the security impact if the vulnerable path is reached?

The issue can cause ESP decryption to write in place over externally owned or page-cache-backed fragments after the shared-fragment marker is lost. The provided severity vector rates confidentiality, integrity, and availability impact as high.

Q: What code change resolves the issue?

The fix propagates the SKBFL_SHARED_FRAG marker when skb_try_coalesce() transfers paged fragment descriptors. This ensures later in-place writers detect shared fragments and do not incorrectly skip skb_cow_data().

Published May 23, 2026

Updated

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skbtrycoalesce() can attach paged frags from @from to @to. If @from has SKBFLSHAREDFRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backed frags, but the shared-frag marker is currently lost. That breaks the invariant relied on by later in-place writers. In particular, ESP input checks skbhassharedfrag() before deciding whether an uncloned nonlinear skb can skip skbcowdata(). If TCP receive coalescing has moved shared frags into an unmarked skb, ESP can see skbhassharedfrag() as false and decrypt in place over page-cache backed frags. Propagate SKBFLSHAREDFRAG when skbtrycoalesce() transfers paged frags. The tailroom copy path does not need the marker because it copies bytes into @to's linear data rather than transferring frag descriptors.

Affected Software

200 affected componentsFixes available

ubuntu/linux-hwe-edge*

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-azure*

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-5.3*

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-hwe-edge*

ubuntu/linux-oem*

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-aws-5.11*

ubuntu/linux-aws-5.13*

ubuntu/linux-aws-5.15<5.15.0-1109.116~20.04.1

5.15.0-1109.116~20.04.1

ubuntu/linux-aws-5.8*

ubuntu/linux-azure-5.11*

ubuntu/linux-azure-5.13*

ubuntu/linux-azure-5.15<5.15.0-1114.123~20.04.1

5.15.0-1114.123~20.04.1

ubuntu/linux-azure-5.8*

ubuntu/linux-azure-fde*

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

ubuntu/linux-gcp-5.15<5.15.0-1109.118~20.04.1

5.15.0-1109.118~20.04.1

ubuntu/linux-gcp-5.8*

ubuntu/linux-gke*

ubuntu/linux-gke-5.15*

ubuntu/linux-gkeop*

ubuntu/linux-gkeop-5.15*

ubuntu/linux-hwe-5.11*

ubuntu/linux-hwe-5.13*

ubuntu/linux-hwe-5.15<5.15.0-181.191~20.04.1

5.15.0-181.191~20.04.1

ubuntu/linux-hwe-5.8*

ubuntu/linux-ibm-5.15<5.15.0-1103.106~20.04.1

5.15.0-1103.106~20.04.1

ubuntu/linux-intel-5.13*

ubuntu/linux-intel-iotg-5.15<5.15.0-1104.110~20.04.1

5.15.0-1104.110~20.04.1

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-181.191~20.04.1

5.15.0-181.191~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1061.61~20.04.1

5.15.0-1061.61~20.04.1

ubuntu/linux-oem-5.10*

ubuntu/linux-oem-5.13*

ubuntu/linux-oem-5.6*

ubuntu/linux-oracle-5.11*

ubuntu/linux-oracle-5.13*

ubuntu/linux-oracle-5.15<5.15.0-1106.112~20.04.1

5.15.0-1106.112~20.04.1

ubuntu/linux-oracle-5.8*

ubuntu/linux-raspi2*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.11*

ubuntu/linux-riscv-5.15<5.15.0-1103.107~20.04.1

5.15.0-1103.107~20.04.1

ubuntu/linux-riscv-5.8*

ubuntu/linux<5.15.0-181.191

5.15.0-181.191

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1109.116

5.15.0-1109.116

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-aws-6.8<6.8.0-1057.60~22.04.1

6.8.0-1057.60~22.04.1

ubuntu/linux-azure<5.15.0-1114.123

5.15.0-1114.123

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-6.8<6.8.0-1059.65~22.04.1

6.8.0-1059.65~22.04.1

ubuntu/linux-azure-fde<5.15.0-1114.123

5.15.0-1114.123

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-azure-fde-6.8<6.8.0-1058.65~22.04.1

6.8.0-1058.65~22.04.1

ubuntu/linux-gcp<5.15.0-1109.118

5.15.0-1109.118

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gcp-6.8<6.8.0-1060.63~22.04.1

6.8.0-1060.63~22.04.1

ubuntu/linux-gke<5.15.0-1105.111

5.15.0-1105.111

ubuntu/linux-gkeop<5.15.0-1092.100

5.15.0-1092.100

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-hwe-6.8<6.8.0-124.124~22.04.1

6.8.0-124.124~22.04.1

ubuntu/linux-ibm<5.15.0-1103.106

5.15.0-1103.106

ubuntu/linux-ibm-6.8<6.8.0-1057.58~22.04.1

6.8.0-1057.58~22.04.1

ubuntu/linux-intel-iot-realtime*

ubuntu/linux-intel-iotg<5.15.0-1104.110

5.15.0-1104.110

ubuntu/linux-kvm<5.15.0-1101.106

5.15.0-1101.106

ubuntu/linux-lowlatency<5.15.0-181.191

5.15.0-181.191

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-lowlatency-hwe-6.8<6.8.0-134.134.1~22.04.1

6.8.0-134.134.1~22.04.1

ubuntu/linux-nvidia<5.15.0-1104.105

5.15.0-1104.105

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-6.5*

ubuntu/linux-nvidia-6.8<6.8.0-1055.58~22.04.1

6.8.0-1055.58~22.04.1

ubuntu/linux-nvidia-tegra<5.15.0-1061.61

5.15.0-1061.61

ubuntu/linux-nvidia-tegra-igx<5.15.0-1050.50

5.15.0-1050.50

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oem-6.5*

ubuntu/linux-oracle<5.15.0-1106.112

5.15.0-1106.112

ubuntu/linux-oracle-6.5*

ubuntu/linux-oracle-6.8<6.8.0-1054.55~22.04.1

6.8.0-1054.55~22.04.1

ubuntu/linux-raspi<5.15.0-1103.106

5.15.0-1103.106

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-riscv-6.8<6.8.0-124.124~22.04.1

6.8.0-124.124~22.04.1

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-xilinx-zynqmp<5.15.0-1074.78

5.15.0-1074.78

ubuntu/linux-bluefield<5.15.0-1093.95

5.15.0-1093.95

ubuntu/linux-intel-iot-realtime<5.15.0-1101.103

5.15.0-1101.103

ubuntu/linux-realtime<5.15.0-1108.117

5.15.0-1108.117

ubuntu/linux-realtime-6.8<6.8.1-1052.53~22.04.1

6.8.1-1052.53~22.04.1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1109.116+fips1

5.15.0-1109.116+fips1

ubuntu/linux-azure-fips<5.15.0-1114.123+fips1

5.15.0-1114.123+fips1

ubuntu/linux-fips<5.15.0-181.191+fips1

5.15.0-181.191+fips1

ubuntu/linux-gcp-fips<5.15.0-1109.118+fips1

5.15.0-1109.118+fips1

ubuntu/linux<6.8.0-124.124

6.8.0-124.124

ubuntu/linux-aws<6.8.0-1057.60

6.8.0-1057.60

ubuntu/linux-aws-6.14*

ubuntu/linux-aws-6.17<6.17.0-1017.17~24.04.1

6.17.0-1017.17~24.04.1

ubuntu/linux-azure<6.8.0-1058.64

6.8.0-1058.64

ubuntu/linux-azure-6.11*

ubuntu/linux-azure-6.14*

ubuntu/linux-azure-6.17<6.17.0-1017.17~24.04.1

6.17.0-1017.17~24.04.1

ubuntu/linux-azure-fde<6.8.0-1058.65

6.8.0-1058.65

ubuntu/linux-azure-fde-6.14*

ubuntu/linux-azure-nvidia*

ubuntu/linux-azure-nvidia-6.14*

ubuntu/linux-gcp<6.8.0-1060.63

6.8.0-1060.63

ubuntu/linux-gcp-6.11*

ubuntu/linux-gcp-6.14*

ubuntu/linux-gcp-6.17<6.17.0-1018.19~24.04.1

6.17.0-1018.19~24.04.1

ubuntu/linux-gke<6.8.0-1055.61

6.8.0-1055.61

ubuntu/linux-gkeop<6.8.0-1042.45

6.8.0-1042.45

ubuntu/linux-hwe-6.11*

ubuntu/linux-hwe-6.14*

ubuntu/linux-hwe-6.17<6.17.0-35.35~24.04.1

6.17.0-35.35~24.04.1

ubuntu/linux-hwe-7.0<7.0.0-28.28~24.04.1

7.0.0-28.28~24.04.1

ubuntu/linux-ibm<6.8.0-1057.58

6.8.0-1057.58

ubuntu/linux-lowlatency<6.8.0-134.134.1

6.8.0-134.134.1

ubuntu/linux-lowlatency-hwe-6.11*

ubuntu/linux-nvidia<6.8.0-1055.58

6.8.0-1055.58

ubuntu/linux-nvidia-6.11*

ubuntu/linux-nvidia-6.17<6.17.0-1021.21

6.17.0-1021.21

ubuntu/linux-nvidia-lowlatency<6.8.0-1055.58.1

6.8.0-1055.58.1

ubuntu/linux-nvidia-tegra<6.8.0-1026.26

6.8.0-1026.26

ubuntu/linux-oem-6.11*

ubuntu/linux-oem-6.14*

ubuntu/linux-oem-6.17<6.17.0-1024.24

6.17.0-1024.24

ubuntu/linux-oem-6.8*

ubuntu/linux-oracle<6.8.0-1054.55

6.8.0-1054.55

ubuntu/linux-oracle-6.14*

ubuntu/linux-oracle-6.17<6.17.0-1016.16~24.04.1

6.17.0-1016.16~24.04.1

ubuntu/linux-raspi<6.8.0-1057.61

6.8.0-1057.61

ubuntu/linux-raspi-realtime*

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-6.14*

ubuntu/linux-riscv-6.17<6.17.0-35.35.1~24.04.1

6.17.0-35.35.1~24.04.1

ubuntu/linux-xilinx<6.8.0-1032.33

6.8.0-1032.33

ubuntu/linux-bluefield<6.8.0-1023.27

6.8.0-1023.27

ubuntu/linux-raspi-realtime<6.8.0-2046.47

6.8.0-2046.47

ubuntu/linux-realtime<6.8.1-1052.53

6.8.1-1052.53

ubuntu/linux-realtime-6.14*

ubuntu/linux-realtime-6.17<6.17.0-1014.16~24.04.1

6.17.0-1014.16~24.04.1

ubuntu/linux-aws-fips<6.8.0-1057.60+fips1

6.8.0-1057.60+fips1

ubuntu/linux-azure-fips<6.8.0-1059.65+fips1

6.8.0-1059.65+fips1

ubuntu/linux-fips<6.8.0-124.124+fips1

6.8.0-124.124+fips1

ubuntu/linux-gcp-fips<6.8.0-1060.63+fips1

6.8.0-1060.63+fips1

ubuntu/linux<6.17.0-35.35

6.17.0-35.35

ubuntu/linux-aws<6.17.0-1017.17

6.17.0-1017.17

ubuntu/linux-azure<6.17.0-1017.17

6.17.0-1017.17

ubuntu/linux-azure-fde*

ubuntu/linux-gcp<6.17.0-1018.19

6.17.0-1018.19

ubuntu/linux-oracle<6.17.0-1016.16

6.17.0-1016.16

ubuntu/linux-raspi<6.17.0-1018.18

6.17.0-1018.18

ubuntu/linux-realtime<6.17.0-1014.16

6.17.0-1014.16

ubuntu/linux-riscv<6.17.0-35.35.1

6.17.0-35.35.1

ubuntu/linux<7.0.0-22.22

7.0.0-22.22

ubuntu/linux-aws<7.0.0-1006.6

7.0.0-1006.6

ubuntu/linux-azure<7.0.0-1007.7

7.0.0-1007.7

ubuntu/linux-azure-fde<7.0.0-1006.6

7.0.0-1006.6

ubuntu/linux-gcp<7.0.0-1005.5

7.0.0-1005.5

ubuntu/linux-ibm<7.0.0-1007.7

7.0.0-1007.7

ubuntu/linux-nvidia<7.0.0-1009.9

7.0.0-1009.9

ubuntu/linux-oem-7.0<7.0.0-1008.8

7.0.0-1008.8

ubuntu/linux-oracle<7.0.0-1005.5

7.0.0-1005.5

ubuntu/linux-raspi<7.0.0-1011.11

7.0.0-1011.11

ubuntu/linux-realtime<7.0.0-22.22.1

7.0.0-22.22.1

ubuntu/linux-riscv<7.0.0-22.22.1

7.0.0-22.22.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1109.116~20.04.1
Upgrade
Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1114.123~20.04.1
Upgrade
Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1109.118~20.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-181.191~20.04.1
Upgrade
Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1103.106~20.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1104.110~20.04.1
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-181.191~20.04.1
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1061.61~20.04.1
Upgrade
Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1106.112~20.04.1
Upgrade
Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1103.107~20.04.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.15.0-181.191
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.15.0-1109.116
Upgrade
Upgrade ubuntu/linux-aws-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1057.60~22.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.15.0-1114.123
Upgrade
Upgrade ubuntu/linux-azure-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1059.65~22.04.1
Upgrade
Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 5.15.0-1114.123
Upgrade
Upgrade ubuntu/linux-azure-fde-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1058.65~22.04.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.15.0-1109.118
Upgrade
Upgrade ubuntu/linux-gcp-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1060.63~22.04.1
Upgrade
Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 5.15.0-1105.111
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.15.0-1092.100
Upgrade
Upgrade ubuntu/linux-hwe-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-124.124~22.04.1
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.15.0-1103.106
Upgrade
Upgrade ubuntu/linux-ibm-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1057.58~22.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.
Fixed in 5.15.0-1104.110
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.15.0-1101.106
Upgrade
Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 5.15.0-181.191
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-134.134.1~22.04.1
Upgrade
Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 5.15.0-1104.105
Upgrade
Upgrade ubuntu/linux-nvidia-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1055.58~22.04.1
Upgrade
Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.
Fixed in 5.15.0-1061.61
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-igx to a version that resolves this vulnerability.
Fixed in 5.15.0-1050.50
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.15.0-1106.112
Upgrade
Upgrade ubuntu/linux-oracle-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1054.55~22.04.1
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.15.0-1103.106
Upgrade
Upgrade ubuntu/linux-riscv-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-124.124~22.04.1
Upgrade
Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.
Fixed in 5.15.0-1074.78
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.15.0-1093.95
Upgrade
Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1101.103
Upgrade
Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1108.117
Upgrade
Upgrade ubuntu/linux-realtime-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.1-1052.53~22.04.1
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1109.116+fips1
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1114.123+fips1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-181.191+fips1
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1109.118+fips1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 6.8.0-124.124
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 6.8.0-1057.60
Upgrade
Upgrade ubuntu/linux-aws-6.17 to a version that resolves this vulnerability.
Fixed in 6.17.0-1017.17~24.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 6.8.0-1058.64
Upgrade
Upgrade ubuntu/linux-azure-6.17 to a version that resolves this vulnerability.
Fixed in 6.17.0-1017.17~24.04.1
Upgrade
Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 6.8.0-1058.65
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 6.8.0-1060.63
Upgrade
Upgrade ubuntu/linux-gcp-6.17 to a version that resolves this vulnerability.
Fixed in 6.17.0-1018.19~24.04.1
Upgrade
Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 6.8.0-1055.61
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 6.8.0-1042.45
Upgrade
Upgrade ubuntu/linux-hwe-6.17 to a version that resolves this vulnerability.
Fixed in 6.17.0-35.35~24.04.1
Upgrade
Upgrade ubuntu/linux-hwe-7.0 to a version that resolves this vulnerability.
Fixed in 7.0.0-28.28~24.04.1
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 6.8.0-1057.58
Upgrade
Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 6.8.0-134.134.1
Upgrade
Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 6.8.0-1055.58
Upgrade
Upgrade ubuntu/linux-nvidia-6.17 to a version that resolves this vulnerability.
Fixed in 6.17.0-1021.21
Upgrade
Upgrade ubuntu/linux-nvidia-lowlatency to a version that resolves this vulnerability.
Fixed in 6.8.0-1055.58.1
Upgrade
Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.
Fixed in 6.8.0-1026.26
Upgrade
Upgrade ubuntu/linux-oem-6.17 to a version that resolves this vulnerability.
Fixed in 6.17.0-1024.24
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 6.8.0-1054.55
Upgrade
Upgrade ubuntu/linux-oracle-6.17 to a version that resolves this vulnerability.
Fixed in 6.17.0-1016.16~24.04.1
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 6.8.0-1057.61
Upgrade
Upgrade ubuntu/linux-riscv-6.17 to a version that resolves this vulnerability.
Fixed in 6.17.0-35.35.1~24.04.1
Upgrade
Upgrade ubuntu/linux-xilinx to a version that resolves this vulnerability.
Fixed in 6.8.0-1032.33
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 6.8.0-1023.27
Upgrade
Upgrade ubuntu/linux-raspi-realtime to a version that resolves this vulnerability.
Fixed in 6.8.0-2046.47
Upgrade
Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 6.8.1-1052.53
Upgrade
Upgrade ubuntu/linux-realtime-6.17 to a version that resolves this vulnerability.
Fixed in 6.17.0-1014.16~24.04.1
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-1057.60+fips1
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-1059.65+fips1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-124.124+fips1
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-1060.63+fips1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 6.17.0-35.35
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 6.17.0-1017.17
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 6.17.0-1017.17
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 6.17.0-1018.19
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 6.17.0-1016.16
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 6.17.0-1018.18
Upgrade
Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 6.17.0-1014.16
Upgrade
Upgrade ubuntu/linux-riscv to a version that resolves this vulnerability.
Fixed in 6.17.0-35.35.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 7.0.0-22.22
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 7.0.0-1006.6
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 7.0.0-1007.7
Upgrade
Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 7.0.0-1006.6
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 7.0.0-1005.5
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 7.0.0-1007.7
Upgrade
Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 7.0.0-1009.9
Upgrade
Upgrade ubuntu/linux-oem-7.0 to a version that resolves this vulnerability.
Fixed in 7.0.0-1008.8
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 7.0.0-1005.5
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 7.0.0-1011.11
Upgrade
Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 7.0.0-22.22.1
Upgrade
Upgrade ubuntu/linux-riscv to a version that resolves this vulnerability.
Fixed in 7.0.0-22.22.1

Event History

May 23, 2026

CVE Published

via OSV·12:17 PM

Data Sourced

via OSV·12:17 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

Which Ubuntu kernel packages are identified as affected?

The listed Ubuntu kernel packages are linux-realtime, linux-azure, linux-gcp, linux-azure-fde, linux-riscv, linux, linux-aws, and linux-oracle.

What conditions are needed for exploitation?

An attacker needs local access and low privileges; no user interaction is required. The vulnerable path involves TCP receive coalescing moving shared paged fragments into an skb and subsequent ESP input decrypting the skb in place.

What is the security impact if the vulnerable path is reached?

The issue can cause ESP decryption to write in place over externally owned or page-cache-backed fragments after the shared-fragment marker is lost. The provided severity vector rates confidentiality, integrity, and availability impact as high.

What code change resolves the issue?

The fix propagates the SKBFL_SHARED_FRAG marker when skb_try_coalesce() transfers paged fragment descriptors. This ensures later in-place writers detect shared fragments and do not incorrectly skip skb_cow_data().

UBUNTU-CVE-2026-46300: High severity ubuntu/linux-hwe-edge vulnerability

Affected Software

Remediation

Event History

Frequently Asked Questions

Which Ubuntu kernel packages are identified as affected?

What conditions are needed for exploitation?

What is the security impact if the vulnerable path is reached?

What code change resolves the issue?

Company

Resources

Contact

Frequently Asked Questions

Which Ubuntu kernel packages are identified as affected?

What conditions are needed for exploitation?

What is the security impact if the vulnerable path is reached?

What code change resolves the issue?