UBUNTU-CVE-2024-26754: Use After Free

Q: What access would an attacker need to exploit this issue?

The CVSS vector indicates local access, high privileges, and a prerequisite attack condition are required. Attack complexity is rated low once those conditions are met.

Q: Which Ubuntu kernel packages are identified as affected?

The listed packages are ubuntu/linux, ubuntu/linux-aws-fips, ubuntu/linux-azure-fips, ubuntu/linux-fips, ubuntu/linux-gcp-fips, ubuntu/linux-azure, ubuntu/linux-gcp, and ubuntu/linux-oracle.

Q: What operational impact could indicate this vulnerability is being triggered?

The reported failure is a kernel general protection fault or null-pointer dereference in gtp_genl_dump_pdp(), associated with the gtp module. The supplied CVSS data rates availability impact as high, while confidentiality and integrity impact are rated none.

Published Apr 3, 2024

Updated

In the Linux kernel, the following vulnerability has been resolved: gtp: fix use-after-free and null-ptr-deref in gtpgenldumppdp() The gtpnetops pernet operations structure for the subsystem must be registered before registering the generic netlink family. Syzkaller hit 'general protection fault in gtpgenldumppdp' bug: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 1 PID: 5826 Comm: gtp Not tainted 6.8.0-rc3-std-def-alt1 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-alt1 04/01/2014 RIP: 0010:gtpgenldumppdp+0x1be/0x800 [gtp] Code: c6 89 c6 e8 64 e9 86 df 58 45 85 f6 0f 85 4e 04 00 00 e8 c5 ee 86 df 48 8b 54 24 18 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 de 05 00 00 48 8b 44 24 18 4c 8b 30 4c 39 f0 74 RSP: 0018:ffff888014107220 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88800fcda588 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f1be4eb05c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1be4e766cf CR3: 000000000c33e000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ? showregs+0x90/0xa0 ? dieaddr+0x50/0xd0 ? excgeneralprotection+0x148/0x220 ? asmexcgeneralprotection+0x22/0x30 ? gtpgenldumppdp+0x1be/0x800 [gtp] ? allocskb+0x1dd/0x350 ? pfxallocskb+0x10/0x10 genldumpit+0x11d/0x230 netlinkdump+0x5b9/0xce0 ? lockdephardirqsonprepare+0x253/0x430 ? pfxnetlinkdump+0x10/0x10 ? kasansavetrack+0x10/0x40 ? kasankmalloc+0x9b/0xa0 ? genlstart+0x675/0x970 netlinkdumpstart+0x6fc/0x9f0 genlfamilyrcvmsgdumpit+0x1bb/0x2d0 ? pfxgenlfamilyrcvmsgdumpit+0x10/0x10 ? genlopfromsmall+0x2a/0x440 ? capcapable+0x1d0/0x240 ? pfxgenlstart+0x10/0x10 ? pfxgenldumpit+0x10/0x10 ? pfxgenldone+0x10/0x10 ? securitycapable+0x9d/0xe0

Affected Software

162 affected componentsFixes available

ubuntu/linux-azure<4.15.0-1182.197~14.04.1

4.15.0-1182.197~14.04.1

ubuntu/linux-aws-hwe<4.15.0-1174.187~16.04.1

4.15.0-1174.187~16.04.1

ubuntu/linux-azure<4.15.0-1182.197~16.04.1

4.15.0-1182.197~16.04.1

ubuntu/linux-gcp<4.15.0-1167.184~16.04.2

4.15.0-1167.184~16.04.2

ubuntu/linux-hwe<4.15.0-230.242~16.04.1

4.15.0-230.242~16.04.1

ubuntu/linux-oracle<4.15.0-1136.147~16.04.1

4.15.0-1136.147~16.04.1

ubuntu/linux-hwe-edge*

ubuntu/linux<4.15.0-230.242

4.15.0-230.242

ubuntu/linux-aws<4.15.0-1174.187

4.15.0-1174.187

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-aws-5.4<5.4.0-1126.136~18.04.1

5.4.0-1126.136~18.04.1

ubuntu/linux-azure*

ubuntu/linux-azure-4.15<4.15.0-1182.197

4.15.0-1182.197

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-5.4<5.4.0-1131.138~18.04.1

5.4.0-1131.138~18.04.1

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-4.15<4.15.0-1167.184

4.15.0-1167.184

ubuntu/linux-gcp-5.3*

ubuntu/linux-gcp-5.4<5.4.0-1130.139~18.04.1

5.4.0-1130.139~18.04.1

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-hwe-5.4<5.4.0-186.206~18.04.1

5.4.0-186.206~18.04.1

ubuntu/linux-hwe-edge*

ubuntu/linux-ibm-5.4<5.4.0-1073.78~18.04.1

5.4.0-1073.78~18.04.1

ubuntu/linux-kvm<4.15.0-1157.162

4.15.0-1157.162

ubuntu/linux-oem*

ubuntu/linux-oracle<4.15.0-1136.147

4.15.0-1136.147

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-oracle-5.4<5.4.0-1125.134~18.04.1

5.4.0-1125.134~18.04.1

ubuntu/linux-raspi-5.4<5.4.0-1110.122~18.04.1

5.4.0-1110.122~18.04.1

ubuntu/linux-aws-fips<4.15.0-2112.118

4.15.0-2112.118

ubuntu/linux-azure-fips<4.15.0-2091.97

4.15.0-2091.97

ubuntu/linux-fips<4.15.0-1128.139

4.15.0-1128.139

ubuntu/linux-gcp-fips<4.15.0-2075.80

4.15.0-2075.80

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.4.0-186.206

5.4.0-186.206

ubuntu/linux-aws<5.4.0-1126.136

5.4.0-1126.136

ubuntu/linux-aws-5.15<5.15.0-1063.69~20.04.1

5.15.0-1063.69~20.04.1

ubuntu/linux-azure<5.4.0-1131.138

5.4.0-1131.138

ubuntu/linux-azure-5.15<5.15.0-1065.74~20.04.1

5.15.0-1065.74~20.04.1

ubuntu/linux-bluefield<5.4.0-1086.93

5.4.0-1086.93

ubuntu/linux-gcp<5.4.0-1130.139

5.4.0-1130.139

ubuntu/linux-gcp-5.15<5.15.0-1062.70~20.04.1

5.15.0-1062.70~20.04.1

ubuntu/linux-gkeop<5.4.0-1093.97

5.4.0-1093.97

ubuntu/linux-gkeop-5.15<5.15.0-1046.53~20.04.1

5.15.0-1046.53~20.04.1

ubuntu/linux-hwe-5.15<5.15.0-113.123~20.04.1

5.15.0-113.123~20.04.1

ubuntu/linux-ibm<5.4.0-1073.78

5.4.0-1073.78

ubuntu/linux-ibm-5.15<5.15.0-1057.60~20.04.1

5.15.0-1057.60~20.04.1

ubuntu/linux-intel-iotg-5.15<5.15.0-1058.64~20.04.1

5.15.0-1058.64~20.04.1

ubuntu/linux-iot<5.4.0-1038.39

5.4.0-1038.39

ubuntu/linux-kvm<5.4.0-1114.121

5.4.0-1114.121

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-110.120~20.04.1

5.15.0-110.120~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1027.27~20.04.1

5.15.0-1027.27~20.04.1

ubuntu/linux-oracle<5.4.0-1125.134

5.4.0-1125.134

ubuntu/linux-oracle-5.15<5.15.0-1061.67~20.04.1

5.15.0-1061.67~20.04.1

ubuntu/linux-raspi<5.4.0-1110.122

5.4.0-1110.122

ubuntu/linux-riscv-5.15<5.15.0-1059.63~20.04.1

5.15.0-1059.63~20.04.1

ubuntu/linux-xilinx-zynqmp<5.4.0-1045.49

5.4.0-1045.49

ubuntu/linux-aws-5.11*

ubuntu/linux-aws-5.13*

ubuntu/linux-aws-5.8*

ubuntu/linux-azure-5.11*

ubuntu/linux-azure-5.13*

ubuntu/linux-azure-5.8*

ubuntu/linux-azure-fde*

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

ubuntu/linux-gcp-5.8*

ubuntu/linux-gke*

ubuntu/linux-gke-5.15*

ubuntu/linux-hwe-5.11*

ubuntu/linux-hwe-5.13*

ubuntu/linux-hwe-5.8*

ubuntu/linux-intel-5.13*

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-5.8*

ubuntu/linux-raspi2*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.11*

ubuntu/linux-riscv-5.8*

ubuntu/linux-aws-fips<5.4.0-1126.136+fips2

5.4.0-1126.136+fips2

ubuntu/linux-azure-fips<5.4.0-1131.138+fips1

5.4.0-1131.138+fips1

ubuntu/linux-fips<5.4.0-1100.110

5.4.0-1100.110

ubuntu/linux-gcp-fips<5.4.0-1130.139+fips1

5.4.0-1130.139+fips1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.15.0-112.122

5.15.0-112.122

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1063.69

5.15.0-1063.69

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-azure<5.15.0-1066.75

5.15.0-1066.75

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-fde<5.15.0-1067.76.1

5.15.0-1067.76.1

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-gcp<5.15.0-1062.70

5.15.0-1062.70

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gke<5.15.0-1060.66

5.15.0-1060.66

ubuntu/linux-gkeop<5.15.0-1046.53

5.15.0-1046.53

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-ibm<5.15.0-1056.59

5.15.0-1056.59

ubuntu/linux-intel-iotg<5.15.0-1058.64

5.15.0-1058.64

ubuntu/linux-kvm<5.15.0-1060.65

5.15.0-1060.65

ubuntu/linux-lowlatency<5.15.0-110.120

5.15.0-110.120

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-nvidia<5.15.0-1058.59

5.15.0-1058.59

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-6.5*

ubuntu/linux-nvidia-tegra<5.15.0-1026.26

5.15.0-1026.26

ubuntu/linux-nvidia-tegra-igx<5.15.0-1015.15

5.15.0-1015.15

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oem-6.5*

ubuntu/linux-oracle<5.15.0-1061.67

5.15.0-1061.67

ubuntu/linux-oracle-6.5*

ubuntu/linux-raspi<5.15.0-1058.61

5.15.0-1058.61

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-xilinx-zynqmp<5.15.0-1030.34

5.15.0-1030.34

ubuntu/linux-bluefield<5.15.0-1044.46

5.15.0-1044.46

ubuntu/linux-intel-iot-realtime<5.15.0-1056.58

5.15.0-1056.58

ubuntu/linux-realtime<5.15.0-1064.72

5.15.0-1064.72

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1063.69+fips1

5.15.0-1063.69+fips1

ubuntu/linux-azure-fips<5.15.0-1065.74+fips1

5.15.0-1065.74+fips1

ubuntu/linux-fips<5.15.0-111.121+fips1

5.15.0-111.121+fips1

ubuntu/linux-gcp-fips<5.15.0-1062.70+fips1

5.15.0-1062.70+fips1

ubuntu/linux-raspi-realtime<6.8.0-2002.2

6.8.0-2002.2

ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 4.15.0-1182.197~14.04.1
Upgrade
Upgrade ubuntu/linux-aws-hwe to a version that resolves this vulnerability.
Fixed in 4.15.0-1174.187~16.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 4.15.0-1182.197~16.04.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 4.15.0-1167.184~16.04.2
Upgrade
Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.
Fixed in 4.15.0-230.242~16.04.1
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 4.15.0-1136.147~16.04.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 4.15.0-230.242
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 4.15.0-1174.187
Upgrade
Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1126.136~18.04.1
Upgrade
Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.
Fixed in 4.15.0-1182.197
Upgrade
Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1131.138~18.04.1
Upgrade
Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.
Fixed in 4.15.0-1167.184
Upgrade
Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1130.139~18.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-186.206~18.04.1
Upgrade
Upgrade ubuntu/linux-ibm-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1073.78~18.04.1
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 4.15.0-1157.162
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 4.15.0-1136.147
Upgrade
Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1125.134~18.04.1
Upgrade
Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1110.122~18.04.1
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2112.118
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2091.97
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-1128.139
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2075.80
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.4.0-186.206
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.4.0-1126.136
Upgrade
Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1063.69~20.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.4.0-1131.138
Upgrade
Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1065.74~20.04.1
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.4.0-1086.93
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.4.0-1130.139
Upgrade
Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1062.70~20.04.1
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.4.0-1093.97
Upgrade
Upgrade ubuntu/linux-gkeop-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1046.53~20.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-113.123~20.04.1
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.4.0-1073.78
Upgrade
Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1057.60~20.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1058.64~20.04.1
Upgrade
Upgrade ubuntu/linux-iot to a version that resolves this vulnerability.
Fixed in 5.4.0-1038.39
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.4.0-1114.121
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-110.120~20.04.1
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1027.27~20.04.1
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.4.0-1125.134
Upgrade
Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1061.67~20.04.1
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.4.0-1110.122
Upgrade
Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1059.63~20.04.1
Upgrade
Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.
Fixed in 5.4.0-1045.49
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1126.136+fips2
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1131.138+fips1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1100.110
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1130.139+fips1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.15.0-112.122
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.15.0-1063.69
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.15.0-1066.75
Upgrade
Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 5.15.0-1067.76.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.15.0-1062.70
Upgrade
Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 5.15.0-1060.66
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.15.0-1046.53
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.15.0-1056.59
Upgrade
Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.
Fixed in 5.15.0-1058.64
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.15.0-1060.65
Upgrade
Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 5.15.0-110.120
Upgrade
Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 5.15.0-1058.59
Upgrade
Upgrade ubuntu/linux-nvidia-tegra to a version that resolves this vulnerability.
Fixed in 5.15.0-1026.26
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-igx to a version that resolves this vulnerability.
Fixed in 5.15.0-1015.15
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.15.0-1061.67
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.15.0-1058.61
Upgrade
Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.
Fixed in 5.15.0-1030.34
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.15.0-1044.46
Upgrade
Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1056.58
Upgrade
Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1064.72
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1063.69+fips1
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1065.74+fips1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-111.121+fips1
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 5.15.0-1062.70+fips1
Upgrade
Upgrade ubuntu/linux-raspi-realtime to a version that resolves this vulnerability.
Fixed in 6.8.0-2002.2
Configuration
Modify the GTP subsystem initialization so that the gtp_net_ops pernet operations structure is registered before the generic netlink family.
Linux kernel GTP subsystem registration order = Register gtp_net_ops pernet operations before registering the generic netlink family

Event History

Apr 3, 2024

CVE Published

via OSV·05:15 PM

Data Sourced

via OSV·05:15 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

What access would an attacker need to exploit this issue?

The CVSS vector indicates local access, high privileges, and a prerequisite attack condition are required. Attack complexity is rated low once those conditions are met.

Which Ubuntu kernel packages are identified as affected?

The listed packages are ubuntu/linux, ubuntu/linux-aws-fips, ubuntu/linux-azure-fips, ubuntu/linux-fips, ubuntu/linux-gcp-fips, ubuntu/linux-azure, ubuntu/linux-gcp, and ubuntu/linux-oracle.

What operational impact could indicate this vulnerability is being triggered?

The reported failure is a kernel general protection fault or null-pointer dereference in gtp_genl_dump_pdp(), associated with the gtp module. The supplied CVSS data rates availability impact as high, while confidentiality and integrity impact are rated none.

UBUNTU-CVE-2024-26754: Use After Free

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Frequently Asked Questions

What access would an attacker need to exploit this issue?

Which Ubuntu kernel packages are identified as affected?

What operational impact could indicate this vulnerability is being triggered?

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Frequently Asked Questions

What access would an attacker need to exploit this issue?

Which Ubuntu kernel packages are identified as affected?

What operational impact could indicate this vulnerability is being triggered?