CVE-2026-23438

CVE-2026-23438 · net: mvpp2: guard flow control update with global_tx_fc in buffer switching

CVSS 6.7 · Medium · EPSS 0.1% · Fix available

Are you affected?

linuxNo fix published
linux Debian 12Update to 6.1.170-1
linux Debian 13Update to 6.12.85-1
linux Debian 14Update to 6.19.10-1
and 19 more

Check the installed version:

dpkg-query -W -f='${source:Package} ${binary:Package} ${Version}\n' | awk '$1=="linux"'

The free check shows your server's rating and highlights whether linux and the rest of its software need attention. No sign-up; server names and IP addresses are never sent. CVE IDs, fixed versions and recommendations come with paid monitoring.

curl -fsSL https://patchfirst.dev/check.sh | sh

Check your server for free →

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

In the Linux kernel, the following vulnerability has been resolved: net: mvpp2: guard flow control update with global_tx_fc in buffer switching mvpp2_bm_switch_buffers() unconditionally calls mvpp2_bm_pool_update_priv_fc() when switching between per-cpu and shared buffer pool modes. This function programs CM3 flow control registers via mvpp2_cm3_read()/mvpp2_cm3_write(), which dereference priv->cm3_base without any NULL check. When the CM3 SRAM resource is not present in the device tree (the third reg entry added by commit 60523583b07c ("dts: marvell: add CM3 SRAM memory to cp11x ethernet device tree")), priv->cm3_base remains NULL and priv->global_tx_fc is false. Any operation that triggers mvpp2_bm_switch_buffers(), for example an MTU change that crosses the jumbo frame threshold, will crash: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits pc : readl+0x0/0x18 lr : mvpp2_cm3_read.isra.0+0x14/0x20 Call trace: readl+0x0/0x18 mvpp2_bm_pool_update_fc+0x40/0x12c mvpp2_bm_pool_update_priv_fc+0x94/0xd8 mvpp2_bm_switch_buffers.isra.0+0x80/0x1c0 mvpp2_change_mtu+0x140/0x380 __dev_set_mtu+0x1c/0x38 dev_set_mtu_ext+0x78/0x118 dev_set_mtu+0x48/0xa8 dev_ifsioc+0x21c/0x43c dev_ioctl+0x2d8/0x42c sock_ioctl+0x314/0x378 Every other flow control call site in the driver already guards hardware access with either priv->global_tx_fc or port->tx_fc. mvpp2_bm_switch_buffers() is the only place that omits this check. Add the missing priv->global_tx_fc guard to both the disable and re-enable calls in mvpp2_bm_switch_buffers(), consistent with the rest of the driver.

Published: 2026-04-03T15:15:22.701Z
Updated: 2026-10-15T01:14:58.956Z

Stack: system

Affected products and versions

linux
Versions
- ≥ 3a616b92a9d17448d96a33bf58e69f01457fd43a, < 0cfcd31f98fc608dc9406bff3fee3a9dd364d014: Affected (git)
- ≥ 3a616b92a9d17448d96a33bf58e69f01457fd43a, < da089f74a993f846685067b14158cb41b879ff29: Affected (git)
- ≥ 3a616b92a9d17448d96a33bf58e69f01457fd43a, < ff0c54f088f7ab91dbbf47cf8244460f99122750: Affected (git)
- ≥ 3a616b92a9d17448d96a33bf58e69f01457fd43a, < 7bd20f4b3ef3044dc55acd5b8ef748a70d29d03f: Affected (git)
- ≥ 3a616b92a9d17448d96a33bf58e69f01457fd43a, < 7df2b50cae1a76cbb90b294f3edb61e3e10bf2e9: Affected (git)
- ≥ 3a616b92a9d17448d96a33bf58e69f01457fd43a, < 8baced53a35fc9710f80d6ca016a2c418dc3231f: Affected (git)
All versions (7)
≥ 3a616b92a9d17448d96a33bf58e69f01457fd43a, < 8a63baadf08453f66eb582fdb6dd234f72024723: Affected (git)
No fix published
linux
Versions
- 5.12: Affected
- ≥ 0, < 5.12: Not affected (semver)
- ≥ 5.15.203, ≤ 5.15.*: Not affected (semver)
- ≥ 6.1.167, ≤ 6.1.*: Not affected (semver)
- ≥ 6.6.130, ≤ 6.6.*: Not affected (semver)
- ≥ 6.12.78, ≤ 6.12.*: Not affected (semver)
All versions (9)
≥ 6.18.20, ≤ 6.18.*: Not affected (semver)
≥ 6.19.10, ≤ 6.19.*: Not affected (semver)
≥ 7.0: Not affected (original_commit_for_fix)
No fix published
linux Debian 12
Versions
- 6.1.106-1
- 6.1.106-2
- 6.1.106-3
- 6.1.112-1
- 6.1.115-1
- 6.1.119-1
All versions (48)
6.1.123-1
6.1.124-1
6.1.128-1
6.1.129-1
6.1.133-1
6.1.135-1
6.1.137-1
6.1.139-1
6.1.140-1
6.1.147-1
6.1.148-1
6.1.153-1
6.1.158-1
6.1.159-1
6.1.162-1
6.1.164-1
6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2
6.1.38-2~bpo11+1
6.1.38-3
6.1.38-4
6.1.38-4~bpo11+1
6.1.52-1
6.1.55-1
6.1.55-1~bpo11+1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1
6.1.69-1~bpo11+1
6.1.76-1
6.1.76-1~bpo11+1
6.1.82-1
6.1.85-1
6.1.90-1
6.1.90-1~bpo11+1
6.1.94-1
6.1.94-1~bpo11+1
6.1.98-1
6.1.99-1
Affected ranges
- ECOSYSTEM: < 6.1.170-1
Update to 6.1.170-1
linux Debian 13
Versions
- 6.12.38-1
- 6.12.41-1
- 6.12.43-1
- 6.12.43-1~bpo12+1
- 6.12.48-1
- 6.12.57-1
All versions (17)
6.12.57-1~bpo12+1
6.12.63-1
6.12.63-1~bpo12+1
6.12.69-1
6.12.69-1~bpo12+1
6.12.73-1
6.12.73-1~bpo12+1
6.12.74-1
6.12.74-2
6.12.74-2~bpo12+1
6.12.85-1~bpo12+1
Affected ranges
- ECOSYSTEM: < 6.12.85-1
Update to 6.12.85-1
linux Debian 14
Versions
- 6.12.100-1
- 6.12.101-1
- 6.12.105-1
- 6.12.107-1
- 6.12.111-1
- 6.12.38-1
All versions (123)
6.12.41-1
6.12.43-1
6.12.43-1~bpo12+1
6.12.48-1
6.12.57-1
6.12.57-1~bpo12+1
6.12.63-1
6.12.63-1~bpo12+1
6.12.69-1
6.12.69-1~bpo12+1
6.12.73-1
6.12.73-1~bpo12+1
6.12.74-1
6.12.74-2
6.12.74-2~bpo12+1
6.12.85-1
6.12.85-1~bpo12+1
6.12.86-1
6.12.86-1~bpo12+1
6.12.88-1
6.12.88-1~bpo12+1
6.12.90-1
6.12.90-1~bpo12+1
6.12.90-2
6.12.90-2~bpo12+1
6.12.94-1
6.12.94-1~bpo12+1
6.12.95-1
6.12.95-1~bpo12+1
6.12.96-1
6.13.10-1~exp1
6.13.11-1~exp1
6.13.2-1~exp1
6.13.3-1~exp1
6.13.4-1~exp1
6.13.5-1~exp1
6.13.6-1~exp1
6.13.7-1~exp1
6.13.8-1~exp1
6.13.9-1~exp1
6.13~rc6-1~exp1
6.13~rc7-1~exp1
6.14.3-1~exp1
6.14.5-1~exp1
6.14.6-1~exp1
6.15-1~exp1
6.15.1-1~exp1
6.15.2-1~exp1
6.15.3-1~exp1
6.15.4-1~exp1
6.15.5-1~exp1
6.15.6-1~exp1
6.15~rc7-1~exp1
6.16-1~exp1
6.16.1-1~exp1
6.16.10-1
6.16.11-1
6.16.12-1
6.16.12-1~bpo13+1
6.16.12-2
6.16.3-1
6.16.3-1~bpo13+1
6.16.5-1
6.16.6-1
6.16.7-1
6.16.8-1
6.16.9-1
6.16~rc7-1~exp1
6.17.10-1
6.17.11-1
6.17.12-1
6.17.13-1
6.17.13-1~bpo13+1
6.17.2-1~exp1
6.17.5-1~exp1
6.17.6-1
6.17.7-1
6.17.7-2
6.17.8-1
6.17.8-1~bpo13+1
6.17.9-1
6.18.1-1~exp1
6.18.10-1
6.18.12-1
6.18.12-1~bpo13+1
6.18.13-1
6.18.14-1
6.18.15-1
6.18.15-1~bpo13+1
6.18.2-1~exp1
6.18.3-1
6.18.5-1
6.18.5-1~bpo13+1
6.18.8-1
6.18.9-1
6.18.9-1~bpo13+1
6.18~rc4-1~exp1
6.18~rc4-1~exp2
6.18~rc5-1~exp1
6.18~rc6-1~exp1
6.18~rc7-1~exp1
6.19-1~exp1
6.19.10-1~bpo13+1
6.19.2-1~exp1
6.19.3-1~exp1
6.19.4-1~exp1
6.19.5-1~exp1
6.19.6-1
6.19.6-2
6.19.6-2~bpo13+1
6.19.8-1
6.19.8-1~bpo13+1
6.19~rc4-1~exp1
6.19~rc5-1~exp1
6.19~rc6-1~exp1
6.19~rc7-1~exp1
6.19~rc8-1~exp1
Affected ranges
- ECOSYSTEM: < 6.19.10-1
Update to 6.19.10-1
linux-hwe-edge Ubuntu 16.04 LTS
Versions
- 4.8.0-28.30~16.04.1
- 4.8.0-30.32~16.04.1
- 4.8.0-32.34~16.04.1
- 4.8.0-34.36~16.04.1
- 4.10.0-14.16~16.04.1
- 4.10.0-19.21~16.04.1
All versions (23)
4.10.0-20.22~16.04.1
4.10.0-21.23~16.04.1
4.10.0-22.24~16.04.1
4.10.0-24.28~16.04.1
4.10.0-26.30~16.04.1
4.11.0-13.19~16.04.1
4.11.0-14.20~16.04.1
4.13.0-16.19~16.04.3
4.13.0-17.20~16.04.1
4.13.0-19.22~16.04.1
4.13.0-21.24~16.04.1
4.13.0-25.29~16.04.2
4.15.0-13.14~16.04.1
4.15.0-15.16~16.04.1
4.15.0-20.21~16.04.1
4.15.0-22.24~16.04.1
4.15.0-23.25~16.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.0 Ubuntu 18.04 LTS
Versions
- 5.0.0-1021.24~18.04.1
- 5.0.0-1022.25~18.04.1
- 5.0.0-1023.26~18.04.1
- 5.0.0-1024.27~18.04.1
- 5.0.0-1025.28
- 5.0.0-1027.30
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.3 Ubuntu 18.04 LTS
Versions
- 5.3.0-1016.17~18.04.1
- 5.3.0-1017.18~18.04.1
- 5.3.0-1019.21~18.04.1
- 5.3.0-1023.25~18.04.1
- 5.3.0-1028.30~18.04.1
- 5.3.0-1030.32~18.04.1
All versions (10)
5.3.0-1032.34~18.04.2
5.3.0-1033.35
5.3.0-1034.36
5.3.0-1035.37
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure Ubuntu 18.04 LTS
Versions
- 4.15.0-1002.2
- 4.15.0-1003.3
- 4.15.0-1004.4
- 4.15.0-1008.8
- 4.15.0-1009.9
- 4.15.0-1012.12
All versions (44)
4.15.0-1013.13
4.15.0-1014.14
4.15.0-1018.18
4.15.0-1019.19
4.15.0-1021.21
4.15.0-1022.23
4.15.0-1023.24
4.15.0-1025.26
4.15.0-1028.29
4.15.0-1030.31
4.15.0-1031.32
4.15.0-1032.33
4.15.0-1035.36
4.15.0-1036.38
4.15.0-1037.39
4.18.0-1011.11~18.04.1
4.18.0-1013.13~18.04.1
4.18.0-1014.14~18.04.1
4.18.0-1018.18~18.04.1
4.18.0-1019.19~18.04.1
4.18.0-1020.20~18.04.1
4.18.0-1023.24~18.04.1
4.18.0-1024.25~18.04.1
4.18.0-1025.27~18.04.1
5.0.0-1014.14~18.04.1
5.0.0-1016.17~18.04.1
5.0.0-1018.19~18.04.1
5.0.0-1020.21~18.04.1
5.0.0-1022.23~18.04.1
5.0.0-1023.24~18.04.1
5.0.0-1025.27~18.04.1
5.0.0-1027.29~18.04.1
5.0.0-1028.30~18.04.1
5.0.0-1029.31~18.04.1
5.0.0-1031.33
5.0.0-1032.34
5.0.0-1035.37
5.0.0-1036.38
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure-5.3 Ubuntu 18.04 LTS
Versions
- 5.3.0-1007.8~18.04.1
- 5.3.0-1008.9~18.04.1
- 5.3.0-1009.10~18.04.1
- 5.3.0-1010.11~18.04.1
- 5.3.0-1012.13~18.04.1
- 5.3.0-1013.14~18.04.1
All versions (16)
5.3.0-1016.17~18.04.1
5.3.0-1018.19~18.04.1
5.3.0-1019.20~18.04.1
5.3.0-1020.21~18.04.1
5.3.0-1022.23~18.04.1
5.3.0-1028.29~18.04.1
5.3.0-1031.32~18.04.1
5.3.0-1032.33~18.04.1
5.3.0-1034.35~18.04.1
5.3.0-1035.36
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure-edge Ubuntu 18.04 LTS
Versions
- 4.18.0-1006.6~18.04.1
- 4.18.0-1007.7~18.04.1
- 4.18.0-1008.8~18.04.1
- 5.0.0-1012.12~18.04.2
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gcp Ubuntu 18.04 LTS
Versions
- 4.15.0-1001.1
- 4.15.0-1003.3
- 4.15.0-1005.5
- 4.15.0-1006.6
- 4.15.0-1008.8
- 4.15.0-1009.9
All versions (38)
4.15.0-1010.10
4.15.0-1014.14
4.15.0-1015.15
4.15.0-1017.18
4.15.0-1018.19
4.15.0-1019.20
4.15.0-1021.22
4.15.0-1023.24
4.15.0-1024.25
4.15.0-1025.26
4.15.0-1026.27
4.15.0-1027.28
4.15.0-1028.29
4.15.0-1029.31
4.15.0-1030.32
4.15.0-1032.34
4.15.0-1033.35
4.15.0-1034.36
4.15.0-1036.38
4.15.0-1037.39
4.15.0-1040.42
4.15.0-1042.45
4.15.0-1044.70
5.0.0-1020.20~18.04.1
5.0.0-1021.21~18.04.1
5.0.0-1025.26~18.04.1
5.0.0-1026.27~18.04.1
5.0.0-1028.29~18.04.1
5.0.0-1029.30~18.04.1
5.0.0-1031.32
5.0.0-1033.34
5.0.0-1034.35
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gcp-5.3 Ubuntu 18.04 LTS
Versions
- 5.3.0-1008.9~18.04.1
- 5.3.0-1009.10~18.04.1
- 5.3.0-1010.11~18.04.1
- 5.3.0-1012.13~18.04.1
- 5.3.0-1014.15~18.04.1
- 5.3.0-1016.17~18.04.1
All versions (13)
5.3.0-1017.18~18.04.1
5.3.0-1018.19~18.04.1
5.3.0-1020.22~18.04.1
5.3.0-1026.28~18.04.1
5.3.0-1029.31~18.04.1
5.3.0-1030.32~18.04.1
5.3.0-1032.34~18.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gke-4.15 Ubuntu 18.04 LTS
Versions
- 4.15.0-1030.32
- 4.15.0-1032.34
- 4.15.0-1033.35
- 4.15.0-1034.36
- 4.15.0-1036.38
- 4.15.0-1037.39
All versions (33)
4.15.0-1040.42
4.15.0-1041.43
4.15.0-1042.44
4.15.0-1044.46
4.15.0-1045.48
4.15.0-1046.49
4.15.0-1048.51
4.15.0-1049.52
4.15.0-1050.53
4.15.0-1052.55
4.15.0-1055.58
4.15.0-1057.60
4.15.0-1058.61
4.15.0-1059.62
4.15.0-1063.66
4.15.0-1064.67
4.15.0-1066.69
4.15.0-1067.70
4.15.0-1069.72
4.15.0-1070.73
4.15.0-1072.76
4.15.0-1073.78
4.15.0-1074.79
4.15.0-1076.81
4.15.0-1077.82
4.15.0-1078.83
4.15.0-1079.84
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gke-5.4 Ubuntu 18.04 LTS
Versions
- 5.4.0-1025.25~18.04.1
- 5.4.0-1027.28~18.04.1
- 5.4.0-1029.31~18.04.1
- 5.4.0-1030.32~18.04.1
- 5.4.0-1032.34~18.04.1
- 5.4.0-1033.35~18.04.1
All versions (37)
5.4.0-1035.37~18.04.1
5.4.0-1036.38~18.04.1
5.4.0-1037.39~18.04.1
5.4.0-1039.41~18.04.1
5.4.0-1040.42~18.04.1
5.4.0-1042.44~18.04.1
5.4.0-1043.45~18.04.1
5.4.0-1044.46~18.04.1
5.4.0-1046.48~18.04.1
5.4.0-1049.52~18.04.1
5.4.0-1051.54~18.04.1
5.4.0-1052.55~18.04.1
5.4.0-1053.56~18.04.1
5.4.0-1054.57~18.04.1
5.4.0-1055.58~18.04.1
5.4.0-1056.59~18.04.1
5.4.0-1057.60~18.04.1
5.4.0-1059.62~18.04.1
5.4.0-1061.64~18.04.1
5.4.0-1062.65~18.04.1
5.4.0-1063.66~18.04.1
5.4.0-1065.68~18.04.1
5.4.0-1066.69~18.04.1
5.4.0-1067.70~18.04.1
5.4.0-1068.71~18.04.1
5.4.0-1071.76~18.04.3
5.4.0-1072.77~18.04.1
5.4.0-1074.79~18.04.1
5.4.0-1076.82~18.04.1
5.4.0-1078.84~18.04.1
5.4.0-1080.86~18.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gkeop-5.4 Ubuntu 18.04 LTS
Versions
- 5.4.0-1001.1
- 5.4.0-1003.3
- 5.4.0-1004.5
- 5.4.0-1005.6
- 5.4.0-1007.8~18.04.1
- 5.4.0-1008.9~18.04.1
All versions (37)
5.4.0-1009.10~18.04.1
5.4.0-1010.11~18.04.1
5.4.0-1011.12~18.04.2
5.4.0-1012.13~18.04.1
5.4.0-1013.14~18.04.1
5.4.0-1014.15~18.04.1
5.4.0-1015.16~18.04.1
5.4.0-1016.17~18.04.1
5.4.0-1018.19~18.04.1
5.4.0-1021.22~18.04.1
5.4.0-1022.23~18.04.1
5.4.0-1023.24~18.04.1
5.4.0-1024.25~18.04.1
5.4.0-1025.26~18.04.1
5.4.0-1026.27~18.04.1
5.4.0-1027.28~18.04.1
5.4.0-1029.30~18.04.2
5.4.0-1031.32~18.04.1
5.4.0-1032.33~18.04.1
5.4.0-1033.34~18.04.1
5.4.0-1034.35~18.04.1
5.4.0-1036.37~18.04.1
5.4.0-1037.38~18.04.1
5.4.0-1038.39~18.04.1
5.4.0-1039.40~18.04.1
5.4.0-1040.41~18.04.1
5.4.0-1043.44~18.04.1
5.4.0-1046.48~18.04.1
5.4.0-1048.51~18.04.1
5.4.0-1049.52~18.04.1
5.4.0-1051.54~18.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-hwe Ubuntu 18.04 LTS
Versions
- 4.18.0-13.14~18.04.1
- 4.18.0-14.15~18.04.1
- 4.18.0-15.16~18.04.1
- 4.18.0-16.17~18.04.1
- 4.18.0-17.18~18.04.1
- 4.18.0-18.19~18.04.1
All versions (43)
4.18.0-20.21~18.04.1
4.18.0-21.22~18.04.1
4.18.0-22.23~18.04.1
4.18.0-24.25~18.04.1
4.18.0-25.26~18.04.1
5.0.0-23.24~18.04.1
5.0.0-25.26~18.04.1
5.0.0-27.28~18.04.1
5.0.0-29.31~18.04.1
5.0.0-31.33~18.04.1
5.0.0-32.34~18.04.2
5.0.0-35.38~18.04.1
5.0.0-36.39~18.04.1
5.0.0-37.40~18.04.1
5.3.0-26.28~18.04.1
5.3.0-28.30~18.04.1
5.3.0-40.32~18.04.1
5.3.0-42.34~18.04.1
5.3.0-45.37~18.04.1
5.3.0-46.38~18.04.1
5.3.0-51.44~18.04.2
5.3.0-53.47~18.04.1
5.3.0-59.53~18.04.1
5.3.0-61.55~18.04.1
5.3.0-62.56~18.04.1
5.3.0-64.58~18.04.1
5.3.0-65.59
5.3.0-66.60
5.3.0-67.61
5.3.0-68.63
5.3.0-69.65
5.3.0-70.66
5.3.0-72.68
5.3.0-73.69
5.3.0-74.70
5.3.0-75.71
5.3.0-76.72
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-hwe-edge Ubuntu 18.04 LTS
Versions
- 5.0.0-15.16~18.04.1
- 5.0.0-16.17~18.04.1
- 5.0.0-17.18~18.04.1
- 5.0.0-19.20~18.04.1
- 5.0.0-20.21~18.04.1
- 5.3.0-19.20~18.04.2
All versions (10)
5.3.0-22.24~18.04.1
5.3.0-23.25~18.04.1
5.3.0-23.25~18.04.2
5.3.0-24.26~18.04.2
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-oem Ubuntu 18.04 LTS
Versions
- 4.15.0-1002.3
- 4.15.0-1004.5
- 4.15.0-1006.9
- 4.15.0-1008.11
- 4.15.0-1009.12
- 4.15.0-1012.15
All versions (50)
4.15.0-1013.16
4.15.0-1015.18
4.15.0-1017.20
4.15.0-1018.21
4.15.0-1021.24
4.15.0-1024.29
4.15.0-1026.31
4.15.0-1028.33
4.15.0-1030.35
4.15.0-1033.38
4.15.0-1034.39
4.15.0-1035.40
4.15.0-1036.41
4.15.0-1038.43
4.15.0-1039.44
4.15.0-1043.48
4.15.0-1045.50
4.15.0-1050.57
4.15.0-1056.65
4.15.0-1057.66
4.15.0-1059.68
4.15.0-1063.72
4.15.0-1064.73
4.15.0-1065.75
4.15.0-1066.76
4.15.0-1067.77
4.15.0-1069.79
4.15.0-1073.83
4.15.0-1076.86
4.15.0-1079.89
4.15.0-1080.90
4.15.0-1081.91
4.15.0-1087.97
4.15.0-1090.100
4.15.0-1091.101
4.15.0-1093.103
4.15.0-1094.104
4.15.0-1096.106
4.15.0-1097.107
4.15.0-1099.109
4.15.0-1100.110
4.15.0-1101.112
4.15.0-1102.113
4.15.0-1103.114
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-oracle-5.0 Ubuntu 18.04 LTS
Versions
- 5.0.0-1007.12~18.04.1
- 5.0.0-1008.13~18.04.1
- 5.0.0-1009.14~18.04.1
- 5.0.0-1010.15~18.04.1
- 5.0.0-1011.16
- 5.0.0-1013.18
All versions (7)
5.0.0-1014.19
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-oracle-5.3 Ubuntu 18.04 LTS
Versions
- 5.3.0-1011.12~18.04.1
- 5.3.0-1013.14~18.04.1
- 5.3.0-1014.15~18.04.1
- 5.3.0-1016.18~18.04.1
- 5.3.0-1018.20~18.04.1
- 5.3.0-1024.26~18.04.1
All versions (9)
5.3.0-1027.29~18.04.1
5.3.0-1028.30~18.04.1
5.3.0-1030.32~18.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.11 Ubuntu 20.04 LTS
Versions
- 5.11.0-1009.9~20.04.2
- 5.11.0-1014.15~20.04.1
- 5.11.0-1016.17~20.04.1
- 5.11.0-1017.18~20.04.1
- 5.11.0-1019.20~20.04.1
- 5.11.0-1020.21~20.04.2
All versions (12)
5.11.0-1021.22~20.04.2
5.11.0-1022.23~20.04.1
5.11.0-1023.24~20.04.1
5.11.0-1025.27~20.04.1
5.11.0-1027.30~20.04.1
5.11.0-1028.31~20.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.13 Ubuntu 20.04 LTS
Versions
- 5.13.0-1008.9~20.04.2
- 5.13.0-1011.12~20.04.1
- 5.13.0-1012.13~20.04.1
- 5.13.0-1014.15~20.04.1
- 5.13.0-1017.19~20.04.1
- 5.13.0-1019.21~20.04.1
All versions (13)
5.13.0-1021.23~20.04.2
5.13.0-1022.24~20.04.1
5.13.0-1023.25~20.04.1
5.13.0-1025.27~20.04.1
5.13.0-1028.31~20.04.1
5.13.0-1029.32~20.04.1
5.13.0-1031.35~20.04.1
Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.15 Ubuntu Pro 20.04 LTS
Versions
- 5.15.0-1014.18~20.04.1
- 5.15.0-1015.19~20.04.1
- 5.15.0-1017.21~20.04.1
- 5.15.0-1019.23~20.04.1
- 5.15.0-1020.24~20.04.1
- 5.15.0-1021.25~20.04.1
All versions (78)
5.15.0-1022.26~20.04.1
5.15.0-1023.27~20.04.1
5.15.0-1026.30~20.04.2
5.15.0-1027.31~20.04.1
5.15.0-1028.32~20.04.1
5.15.0-1030.34~20.04.1
5.15.0-1031.35~20.04.1
5.15.0-1033.37~20.04.1
5.15.0-1034.38~20.04.1
5.15.0-1035.39~20.04.1
5.15.0-1036.40~20.04.1
5.15.0-1037.41~20.04.1
5.15.0-1038.43~20.04.1
5.15.0-1039.44~20.04.1
5.15.0-1040.45~20.04.1
5.15.0-1041.46~20.04.1
5.15.0-1043.48~20.04.1
5.15.0-1044.49~20.04.1
5.15.0-1045.50~20.04.1
5.15.0-1047.52~20.04.1
5.15.0-1048.53~20.04.1
5.15.0-1049.54~20.04.1
5.15.0-1050.55~20.04.1
5.15.0-1051.56~20.04.1
5.15.0-1052.57~20.04.1
5.15.0-1053.58~20.04.1
5.15.0-1055.60~20.04.1
5.15.0-1056.61~20.04.1
5.15.0-1057.63~20.04.1
5.15.0-1058.64~20.04.1
5.15.0-1061.67~20.04.1
5.15.0-1062.68~20.04.1
5.15.0-1063.69~20.04.1
5.15.0-1064.70~20.04.1
5.15.0-1065.71~20.04.1
5.15.0-1066.72~20.04.1
5.15.0-1067.73~20.04.1
5.15.0-1068.74~20.04.1
5.15.0-1069.75~20.04.1
5.15.0-1070.76~20.04.1
5.15.0-1071.77~20.04.1
5.15.0-1072.78~20.04.1
5.15.0-1073.79~20.04.1
5.15.0-1075.82~20.04.1
5.15.0-1077.84~20.04.1
5.15.0-1080.87~20.04.1
5.15.0-1081.88~20.04.1
5.15.0-1082.89~20.04.1
5.15.0-1083.90~20.04.1
5.15.0-1084.91~20.04.1
5.15.0-1086.93~20.04.1
5.15.0-1087.94~20.04.1
5.15.0-1088.95~20.04.1
5.15.0-1089.96~20.04.1
5.15.0-1090.97~20.04.1
5.15.0-1091.98~20.04.1
5.15.0-1092.99~20.04.1
5.15.0-1093.100~20.04.1
5.15.0-1095.102~20.04.1
5.15.0-1096.103~20.04.1
5.15.0-1097.104~20.04.1
5.15.0-1098.105~20.04.1
5.15.0-1099.106~20.04.1
5.15.0-1100.107~20.04.2
5.15.0-1101.108~20.04.1
5.15.0-1103.110~20.04.1
5.15.0-1104.111~20.04.1
5.15.0-1105.112~20.04.1
5.15.0-1106.113~20.04.1
5.15.0-1108.115~20.04.1
5.15.0-1109.116~20.04.1
5.15.0-1111.118~20.04.1
Affected ranges
- ECOSYSTEM: < 5.15.0-1112.119~20.04.1
Update to 5.15.0-1112.119~20.04.1

Original sources

Check your server →

CVE-2026-23438 · net: mvpp2: guard flow control update with global_tx_fc in buffer switching

Are you affected?

Affected products and versions

linux

linux

linux Debian 12

linux Debian 13

linux Debian 14

linux-hwe-edge Ubuntu 16.04 LTS

linux-aws-5.0 Ubuntu 18.04 LTS

linux-aws-5.3 Ubuntu 18.04 LTS

linux-azure Ubuntu 18.04 LTS

linux-azure-5.3 Ubuntu 18.04 LTS

linux-azure-edge Ubuntu 18.04 LTS

linux-gcp Ubuntu 18.04 LTS

linux-gcp-5.3 Ubuntu 18.04 LTS

linux-gke-4.15 Ubuntu 18.04 LTS

linux-gke-5.4 Ubuntu 18.04 LTS

linux-gkeop-5.4 Ubuntu 18.04 LTS

linux-hwe Ubuntu 18.04 LTS

linux-hwe-edge Ubuntu 18.04 LTS

linux-oem Ubuntu 18.04 LTS

linux-oracle-5.0 Ubuntu 18.04 LTS

linux-oracle-5.3 Ubuntu 18.04 LTS

linux-aws-5.11 Ubuntu 20.04 LTS

linux-aws-5.13 Ubuntu 20.04 LTS

linux-aws-5.15 Ubuntu Pro 20.04 LTS

Original sources