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CVE-2019-19076

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp...

5.9 MediumFix availableDisputed

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

3.17%Up 1.4 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.9

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted

Record
CVE-2019-19076
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
7.1 HighAV:N/AC:M/Au:N/C:N/I:N/A:C
Weakness
CWE-401
Updated
2026-11-02
CVE List No score

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted

Record
CVE-2019-19076
Updated
2026-11-02
EUVDEUVD-2019-8715 No score

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted

Record
EUVD-2019-8715
Updated
2026-11-03
GitHub AdvisoriesGHSA-wf7v-v54q-4q9x 5.9

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp...

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9.

Record
GHSA-wf7v-v54q-4q9x
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-401
Updated
2026-11-02
OSVAZL-41940 5.9

CVE-2019-19076 affecting package hyperv-daemons for versions less than 6.6.35.1-1

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted

Record
AZL-41940
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-05
OSVBELL-CVE-2019-19076 5.9

CVE-2019-19076 does not affect BellSoft software

Record
BELL-CVE-2019-19076
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 4 moreShow less
OSV 5.9

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted

Record
CVE-2019-19076
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2019-19076 5.9

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted

Record
DEBIAN-CVE-2019-19076
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2019-19076 5.9

A memory leak in the nfp_abm_u32_knode_replace() function in drivers/net/ethernet/netronome/nfp/abm/cls.c in the Linux kernel before 5.3.6 allows attackers to cause a denial of service (memory consumption), aka CID-78beef629fd9. NOTE: This has been argued as not a valid vulnerability. The upstream commit 78beef629fd9 was reverted

Record
UBUNTU-CVE-2019-19076
CVSS 3.1
5.9 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUSN-4209-1 No score

linux, linux-aws, linux-aws-5.0, linux-gcp, linux-gke-5.0, linux-hwe, linux-kvm, linux-oem-osp1, linux-oracle, linux-oracle-5.0, linux-raspi2 vulnerabilities

Jann Horn discovered that the OverlayFS and ShiftFS Drivers in the Linux kernel did not properly handle reference counting during memory mapping operations when used in conjunction with AUFS. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-15794)

It was discovered that a buffer overflow existed in the 802.11 Wi-Fi configuration interface for the Linux kernel when handling beacon settings. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-16746)

It was discovered that there was a memory leak in the Advanced Buffer Management functionality of the Netronome NFP4000/NFP6000 NIC Driver in the Linux kernel during certain error scenarios. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19076)

Record
USN-4209-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
hyperv-daemons
Azure Linux:3
before 6.6.35.1-1
6.6.35.1-1
linux
Debian:12
before 5.3.7-1
5.3.7-1
linux
Debian:13
before 5.3.7-1
5.3.7-1
linux
Debian:14
before 5.3.7-1
5.3.7-1
linux-hwe-edge
Ubuntu:16.04:LTS
All versions, plus listed versions
4.8.0-28.30~16.04.14.8.0-30.32~16.04.14.8.0-32.34~16.04.14.8.0-34.36~16.04.14.10.0-14.16~16.04.1
Show 18 moreShow less
4.10.0-19.21~16.04.14.10.0-20.22~16.04.14.10.0-21.23~16.04.14.10.0-22.24~16.04.14.10.0-24.28~16.04.14.10.0-26.30~16.04.14.11.0-13.19~16.04.14.11.0-14.20~16.04.14.13.0-16.19~16.04.34.13.0-17.20~16.04.14.13.0-19.22~16.04.14.13.0-21.24~16.04.14.13.0-25.29~16.04.24.15.0-13.14~16.04.14.15.0-15.16~16.04.14.15.0-20.21~16.04.14.15.0-22.24~16.04.14.15.0-23.25~16.04.1
None known
linux-aws-5.0
Ubuntu:18.04:LTS
before 5.0.0-1022.25~18.04.1, plus listed versions
5.0.0-1021.24~18.04.1
5.0.0-1022.25~18.04.1
linux-azure
Ubuntu:18.04:LTS
before 5.0.0-1027.29~18.04.1, plus listed versions
4.15.0-1002.24.15.0-1003.34.15.0-1004.44.15.0-1008.84.15.0-1009.9
Show 32 moreShow less
4.15.0-1012.124.15.0-1013.134.15.0-1014.144.15.0-1018.184.15.0-1019.194.15.0-1021.214.15.0-1022.234.15.0-1023.244.15.0-1025.264.15.0-1028.294.15.0-1030.314.15.0-1031.324.15.0-1032.334.15.0-1035.364.15.0-1036.384.15.0-1037.394.18.0-1011.11~18.04.14.18.0-1013.13~18.04.14.18.0-1014.14~18.04.14.18.0-1018.18~18.04.14.18.0-1019.19~18.04.14.18.0-1020.20~18.04.14.18.0-1023.24~18.04.14.18.0-1024.25~18.04.14.18.0-1025.27~18.04.15.0.0-1014.14~18.04.15.0.0-1016.17~18.04.15.0.0-1018.19~18.04.15.0.0-1020.21~18.04.15.0.0-1022.23~18.04.15.0.0-1023.24~18.04.15.0.0-1025.27~18.04.1
5.0.0-1027.29~18.04.1
linux-gcp
Ubuntu:18.04:LTS
before 5.0.0-1026.27~18.04.1, plus listed versions
4.15.0-1001.14.15.0-1003.34.15.0-1005.54.15.0-1006.64.15.0-1008.8
Show 27 moreShow less
4.15.0-1009.94.15.0-1010.104.15.0-1014.144.15.0-1015.154.15.0-1017.184.15.0-1018.194.15.0-1019.204.15.0-1021.224.15.0-1023.244.15.0-1024.254.15.0-1025.264.15.0-1026.274.15.0-1027.284.15.0-1028.294.15.0-1029.314.15.0-1030.324.15.0-1032.344.15.0-1033.354.15.0-1034.364.15.0-1036.384.15.0-1037.394.15.0-1040.424.15.0-1042.454.15.0-1044.705.0.0-1020.20~18.04.15.0.0-1021.21~18.04.15.0.0-1025.26~18.04.1
5.0.0-1026.27~18.04.1
linux-gke-5.0
Ubuntu:18.04:LTS
before 5.0.0-1026.27~18.04.2, plus listed versions
5.0.0-1011.11~18.04.15.0.0-1013.13~18.04.15.0.0-1015.15~18.04.15.0.0-1017.17~18.04.15.0.0-1020.20~18.04.15.0.0-1022.22~18.04.35.0.0-1023.23~18.04.25.0.0-1025.26~18.04.1
5.0.0-1026.27~18.04.2
linux-hwe
Ubuntu:18.04:LTS
before 5.0.0-37.40~18.04.1, plus listed versions
4.18.0-13.14~18.04.14.18.0-14.15~18.04.14.18.0-15.16~18.04.14.18.0-16.17~18.04.14.18.0-17.18~18.04.1
Show 14 moreShow less
4.18.0-18.19~18.04.14.18.0-20.21~18.04.14.18.0-21.22~18.04.14.18.0-22.23~18.04.14.18.0-24.25~18.04.14.18.0-25.26~18.04.15.0.0-23.24~18.04.15.0.0-25.26~18.04.15.0.0-27.28~18.04.15.0.0-29.31~18.04.15.0.0-31.33~18.04.15.0.0-32.34~18.04.25.0.0-35.38~18.04.15.0.0-36.39~18.04.1
5.0.0-37.40~18.04.1
Show 21 moreShow less
Affected packages
PackageAffectedFixed
linux-oem-osp1
Ubuntu:18.04:LTS
before 5.0.0-1030.34, plus listed versions
5.0.0-1010.115.0.0-1012.135.0.0-1015.165.0.0-1018.205.0.0-1020.22
Show 5 moreShow less
5.0.0-1022.245.0.0-1024.275.0.0-1025.285.0.0-1027.315.0.0-1028.32
5.0.0-1030.34
linux-oracle-5.0
Ubuntu:18.04:LTS
before 5.0.0-1008.13~18.04.1, plus listed versions
5.0.0-1007.12~18.04.1
5.0.0-1008.13~18.04.1
linux-azure-edge
Ubuntu:18.04:LTS
All versions, plus listed versions
4.18.0-1006.6~18.04.14.18.0-1007.7~18.04.14.18.0-1008.8~18.04.15.0.0-1012.12~18.04.2
None known
linux-gcp-edge
Ubuntu:18.04:LTS
All versions, plus listed versions
4.18.0-1004.5~18.04.14.18.0-1005.6~18.04.14.18.0-1006.7~18.04.14.18.0-1007.8~18.04.14.18.0-1008.9~18.04.1
Show 7 moreShow less
4.18.0-1009.10~18.04.14.18.0-1011.12~18.04.14.18.0-1012.13~18.04.14.18.0-1013.14~18.04.14.18.0-1015.16~18.04.15.0.0-1011.11~18.04.15.0.0-1013.13~18.04.1
None known
linux-hwe-edge
Ubuntu:18.04:LTS
All versions, plus listed versions
5.0.0-15.16~18.04.15.0.0-16.17~18.04.15.0.0-17.18~18.04.15.0.0-19.20~18.04.15.0.0-20.21~18.04.1
Show 5 moreShow less
5.3.0-19.20~18.04.25.3.0-22.24~18.04.15.3.0-23.25~18.04.15.3.0-23.25~18.04.25.3.0-24.26~18.04.2
None known
linux-azure-fde
Ubuntu:20.04:LTS
All versions, plus listed versions
5.4.0-1063.66+cvm2.25.4.0-1063.66+cvm3.25.4.0-1064.67+cvm1.15.4.0-1065.68+cvm2.15.4.0-1067.70+cvm1.1
Show 21 moreShow less
5.4.0-1068.71+cvm1.15.4.0-1069.72+cvm1.15.4.0-1070.73+cvm1.15.4.0-1072.75+cvm1.15.4.0-1073.76+cvm1.15.4.0-1074.77+cvm1.15.4.0-1076.79+cvm1.15.4.0-1078.81+cvm1.15.4.0-1080.83+cvm1.15.4.0-1083.87+cvm1.15.4.0-1085.90+cvm1.15.4.0-1085.90+cvm2.15.4.0-1086.91+cvm1.15.4.0-1089.94+cvm1.25.4.0-1090.95+cvm1.15.4.0-1091.96+cvm1.15.4.0-1092.97+cvm1.15.4.0-1095.101+cvm1.15.4.0-1098.104+cvm1.15.4.0-1100.106+cvm1.15.4.0-1103.109+cvm1.1
None known
linux-gke
Ubuntu:20.04:LTS
All versions, plus listed versions
5.4.0-1033.355.4.0-1035.375.4.0-1036.385.4.0-1037.395.4.0-1039.41
Show 45 moreShow less
5.4.0-1041.435.4.0-1042.445.4.0-1043.455.4.0-1044.465.4.0-1046.485.4.0-1049.525.4.0-1051.545.4.0-1052.555.4.0-1053.565.4.0-1054.575.4.0-1055.585.4.0-1056.595.4.0-1057.605.4.0-1059.625.4.0-1061.645.4.0-1062.655.4.0-1063.665.4.0-1065.685.4.0-1066.695.4.0-1067.705.4.0-1068.715.4.0-1071.765.4.0-1072.775.4.0-1074.795.4.0-1076.825.4.0-1078.845.4.0-1080.865.4.0-1081.875.4.0-1083.895.4.0-1084.905.4.0-1086.935.4.0-1087.945.4.0-1090.975.4.0-1091.985.4.0-1094.1015.4.0-1095.1025.4.0-1096.1035.4.0-1097.1045.4.0-1098.1055.4.0-1099.1065.4.0-1100.1075.4.0-1101.1085.4.0-1102.1095.4.0-1103.1105.4.0-1104.111
None known
linux-gkeop
Ubuntu:20.04:LTS
All versions, plus listed versions
5.4.0-1008.95.4.0-1009.105.4.0-1010.115.4.0-1011.125.4.0-1012.13
Show 45 moreShow less
5.4.0-1013.145.4.0-1014.155.4.0-1015.165.4.0-1016.175.4.0-1018.195.4.0-1021.225.4.0-1022.235.4.0-1023.245.4.0-1024.255.4.0-1025.265.4.0-1026.275.4.0-1027.285.4.0-1029.305.4.0-1031.325.4.0-1032.335.4.0-1033.345.4.0-1034.355.4.0-1036.375.4.0-1037.385.4.0-1038.395.4.0-1039.405.4.0-1040.415.4.0-1043.445.4.0-1046.485.4.0-1048.515.4.0-1049.525.4.0-1051.545.4.0-1052.555.4.0-1053.565.4.0-1054.575.4.0-1056.605.4.0-1057.615.4.0-1060.645.4.0-1061.655.4.0-1062.665.4.0-1064.685.4.0-1065.695.4.0-1066.705.4.0-1067.715.4.0-1068.725.4.0-1069.735.4.0-1070.745.4.0-1071.755.4.0-1072.765.4.0-1073.77
None known
linux-gkeop-5.15
Ubuntu:20.04:LTS
All versions, plus listed versions
5.15.0-1003.5~20.04.25.15.0-1005.7~20.04.15.15.0-1007.10~20.04.15.15.0-1008.12~20.04.15.15.0-1011.15~20.04.2
Show 40 moreShow less
5.15.0-1012.16~20.04.15.15.0-1013.17~20.04.15.15.0-1015.19~20.04.15.15.0-1016.21~20.04.15.15.0-1017.22~20.04.15.15.0-1018.23~20.04.15.15.0-1019.24~20.04.15.15.0-1020.25~20.04.15.15.0-1021.26~20.04.15.15.0-1022.27~20.04.15.15.0-1023.28~20.04.15.15.0-1024.29~20.04.15.15.0-1025.30~20.04.15.15.0-1026.31~20.04.15.15.0-1027.32~20.04.15.15.0-1028.33~20.04.15.15.0-1030.35~20.04.15.15.0-1031.37~20.04.15.15.0-1032.38~20.04.15.15.0-1033.39~20.04.15.15.0-1034.40~20.04.15.15.0-1035.41~20.04.15.15.0-1036.42~20.04.15.15.0-1037.43~20.04.15.15.0-1038.44~20.04.15.15.0-1039.45~20.04.15.15.0-1040.46~20.04.15.15.0-1043.50~20.04.15.15.0-1044.51~20.04.15.15.0-1045.52~20.04.15.15.0-1046.53~20.04.15.15.0-1047.54~20.04.15.15.0-1048.55~20.04.15.15.0-1049.56~20.04.15.15.0-1050.57~20.04.15.15.0-1051.58~20.04.15.15.0-1052.59~20.04.15.15.0-1053.60~20.04.15.15.0-1054.61~20.04.15.15.0-1055.62~20.04.1
None known
linux-raspi2
Ubuntu:20.04:LTS
All versions, plus listed versions
5.3.0-1007.85.3.0-1014.165.3.0-1015.175.3.0-1017.195.4.0-1004.45.4.0-1006.6
None known
linux-riscv
Ubuntu:20.04:LTS
All versions, plus listed versions
5.4.0-24.285.4.0-26.305.4.0-27.315.4.0-28.325.4.0-30.34
Show 7 moreShow less
5.4.0-31.355.4.0-33.375.4.0-34.385.4.0-36.415.4.0-37.425.4.0-39.445.4.0-40.45
None known
linux-intel-iot-realtime
Ubuntu:22.04:LTS
All versions, plus listed versions
5.15.0-1073.75
None known
linux-realtime
Ubuntu:22.04:LTS
All versions, plus listed versions
5.15.0-1032.35
None known
linux-riscv
Ubuntu:22.04:LTS
All versions, plus listed versions
5.13.0-1004.45.13.0-1006.6+22.04.15.13.0-1007.7+22.04.15.13.0-1010.11+22.04.15.15.0-1004.4
Show 18 moreShow less
5.15.0-1005.55.15.0-1006.65.15.0-1007.75.15.0-1008.85.15.0-1011.125.15.0-1012.135.15.0-1014.165.15.0-1015.175.15.0-1016.185.15.0-1017.195.15.0-1018.215.15.0-1019.225.15.0-1020.235.15.0-1022.265.15.0-1023.275.15.0-1026.305.15.0-1027.315.15.0-1028.32
None known
linux-raspi-realtime
Ubuntu:24.04:LTS
All versions, plus listed versions
6.8.0-2019.20
None known
linux-aws-5.0
Ubuntu:18.04:LTS
From an advisory covering 3 CVEs
before 5.0.0-1022.25~18.04.1, plus listed versions
5.0.0-1021.24~18.04.1
5.0.0-1022.25~18.04.1
linux-gcp
Ubuntu:18.04:LTS
From an advisory covering 3 CVEs
before 5.0.0-1026.27~18.04.1, plus listed versions
4.15.0-1001.14.15.0-1003.34.15.0-1005.54.15.0-1006.64.15.0-1008.8
Show 27 moreShow less
4.15.0-1009.94.15.0-1010.104.15.0-1014.144.15.0-1015.154.15.0-1017.184.15.0-1018.194.15.0-1019.204.15.0-1021.224.15.0-1023.244.15.0-1024.254.15.0-1025.264.15.0-1026.274.15.0-1027.284.15.0-1028.294.15.0-1029.314.15.0-1030.324.15.0-1032.344.15.0-1033.354.15.0-1034.364.15.0-1036.384.15.0-1037.394.15.0-1040.424.15.0-1042.454.15.0-1044.705.0.0-1020.20~18.04.15.0.0-1021.21~18.04.15.0.0-1025.26~18.04.1
5.0.0-1026.27~18.04.1
linux-gke-5.0
Ubuntu:18.04:LTS
From an advisory covering 3 CVEs
before 5.0.0-1026.27~18.04.2, plus listed versions
5.0.0-1011.11~18.04.15.0.0-1013.13~18.04.15.0.0-1015.15~18.04.15.0.0-1017.17~18.04.15.0.0-1020.20~18.04.15.0.0-1022.22~18.04.35.0.0-1023.23~18.04.25.0.0-1025.26~18.04.1
5.0.0-1026.27~18.04.2
linux-hwe
Ubuntu:18.04:LTS
From an advisory covering 3 CVEs
before 5.0.0-37.40~18.04.1, plus listed versions
4.18.0-13.14~18.04.14.18.0-14.15~18.04.14.18.0-15.16~18.04.14.18.0-16.17~18.04.14.18.0-17.18~18.04.1
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4.18.0-18.19~18.04.14.18.0-20.21~18.04.14.18.0-21.22~18.04.14.18.0-22.23~18.04.14.18.0-24.25~18.04.14.18.0-25.26~18.04.15.0.0-23.24~18.04.15.0.0-25.26~18.04.15.0.0-27.28~18.04.15.0.0-29.31~18.04.15.0.0-31.33~18.04.15.0.0-32.34~18.04.25.0.0-35.38~18.04.15.0.0-36.39~18.04.1
5.0.0-37.40~18.04.1
linux-oem-osp1
Ubuntu:18.04:LTS
From an advisory covering 3 CVEs
before 5.0.0-1030.34, plus listed versions
5.0.0-1010.115.0.0-1012.135.0.0-1015.165.0.0-1018.205.0.0-1020.22
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5.0.0-1022.245.0.0-1024.275.0.0-1025.285.0.0-1027.315.0.0-1028.32
5.0.0-1030.34
linux-oracle-5.0
Ubuntu:18.04:LTS
From an advisory covering 3 CVEs
before 5.0.0-1008.13~18.04.1, plus listed versions
5.0.0-1007.12~18.04.1
5.0.0-1008.13~18.04.1

History

History
RecordedChangedSources
affected
factsOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-19076 is a medium vulnerability (CVSS 5.9) in Linux Kernel, published November 18, 2019. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 3.17%, the 88th percentile. Fixed in hyperv-daemons 6.6.35.1-1.

References

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This page doesn't list everything

Left out here: 29 versions. The JSON record has them.

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