Description
In the Linux kernel, the following vulnerability has been resolved:
can: pch_can: pch_can_rx_normal: fix use after free
After calling netif_receive_skb(skb), dereferencing skb is unsafe.
Especially, the can_frame cf which aliases skb memory is dereferenced
just after the call netif_receive_skb(skb).
Reordering the lines solves the issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 2.6.37 | 4.4.295 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 5.15.15-1 | — |
| Debian 13 | linux | 5.15.15-1 | — |
| Debian 12 | linux | 5.15.15-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +22 | No fix yet | — |
| Ubuntu 20.04 LTS | linux | 5.4.0-100.113 | — |
| Ubuntu 20.04 LTS | linux-aws | 5.4.0-1066.69 | — |
| Ubuntu 20.04 LTS | linux-azure | 5.4.0-1070.73 | — |
| Ubuntu 20.04 LTS | linux-bluefield | 5.4.0-1028.31 | — |
| Ubuntu 20.04 LTS | linux-gcp | 5.4.0-1065.69 | — |
| Ubuntu 20.04 LTS | linux-gke +26 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gkeop | 5.4.0-1034.35 | — |
| Ubuntu 20.04 LTS | linux-ibm | 5.4.0-1015.16 | — |
| Ubuntu 20.04 LTS | linux-kvm | 5.4.0-1056.58 | — |
| Ubuntu 20.04 LTS | linux-oracle | 5.4.0-1064.68 | — |
| Ubuntu 20.04 LTS | linux-raspi | 5.4.0-1053.60 | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-169.177 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1121.129 | — |
| Ubuntu 18.04 LTS | linux-aws-5.4 | 5.4.0-1066.69~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-azure-4.15 | 4.15.0-1131.144 | — |
| Ubuntu 18.04 LTS | linux-azure-5.4 | 5.4.0-1070.73~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp-4.15 | 4.15.0-1116.130 | — |
| Ubuntu 18.04 LTS | linux-gcp-5.4 | 5.4.0-1065.69~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe-5.4 | 5.4.0-100.113~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-ibm-5.4 | 5.4.0-1015.16~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1107.109 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1087.95 | — |
| Ubuntu 18.04 LTS | linux-oracle-5.4 | 5.4.0-1064.68~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-raspi-5.4 | 5.4.0-1053.60~18.04.1 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 20.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 18.04 LTS | linux-fips +3 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-aws-fips | 5.4.0-1069.73+fips2 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-azure-fips | 5.4.0-1073.76+fips1 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-fips | 5.4.0-1043.49 | — |
| Ubuntu Pro FIPS-updates 20.04 LTS | linux-gcp-fips | 5.4.0-1067.71~20.04.1 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2061.63 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2043.47 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-fips | 4.15.0-1078.87 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-gcp-fips | 4.15.0-2026.28 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux +2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | linux-aws-hwe | 4.15.0-1120.128~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-azure | 4.15.0-1131.144~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-gcp | 4.15.0-1116.130~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-hwe | 4.15.0-169.177~16.04.1 | — |
| Ubuntu Pro 16.04 LTS | linux-oracle | 4.15.0-1087.95~16.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux +2 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1131.144~14.04.1 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | kernel-64kb +6 | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| SLES 15 SP5 | kernel-azure +2 | 5.14.21-150500.33.57.1 | SUSE-SU-2024:2019-1 |
| SLES 15 SP5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
| SLES 15 SP4 | kernel-64kb +4 | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| SLES 15 SP4 | kernel-default-base | 5.14.21-150400.24.122.2.150400.24.58.2 | SUSE-SU-2024:2189-1 |
| SLES 15 SP4 | kernel-syms +1 | 5.14.21-150400.24.122.1 | SUSE-SU-2024:2189-1 |
| SLES 15 SP3 | kernel-64kb +6 | 5.3.18-150300.59.170.1 | SUSE-SU-2024:2948-1 |
| SLES 15 SP3 | kernel-default-base | 5.3.18-150300.59.170.1.150300.18.100.1 | SUSE-SU-2024:2948-1 |
| SLES 15 SP3 | kernel-docs | 5.3.18-150300.59.170.2 | SUSE-SU-2024:2948-1 |
| SLES 15 SP2 | kernel-default-base | 5.3.18-150200.24.200.1.150200.9.103.1 | SUSE-SU-2024:2923-1 |
| SLES 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.200.1 | SUSE-SU-2024:2923-1 |
| SLES 12 SP5 | kernel-azure +2 | 4.12.14-16.194.1 | SUSE-SU-2024:2901-1 |
| SLES 12 SP5 | kernel-docs +4 | 4.12.14-122.222.1 | SUSE-SU-2024:2561-1 |
Show 23 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | kernel-ec2 +5 | 3.0.101-108.159.1 | SUSE-SU-2024:2895-1 |
| SLES for SAP 15 SP4 | kernel-default-base | 5.14.21-150400.24.122.2.150400.24.58.2 | SUSE-SU-2024:2189-1 |
| SLES for SAP 15 SP4 | kernel-docs +2 | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| SLES for SAP 15 SP4 | kernel-syms +1 | 5.14.21-150400.24.122.1 | SUSE-SU-2024:2189-1 |
| SLES for SAP 15 SP3 | kernel-default-base | 5.3.18-150300.59.170.1.150300.18.100.1 | SUSE-SU-2024:2948-1 |
| SLES for SAP 15 SP3 | kernel-docs | 5.3.18-150300.59.170.2 | SUSE-SU-2024:2948-1 |
| SLES for SAP 15 SP3 | kernel-syms +4 | 5.3.18-150300.59.170.1 | SUSE-SU-2024:2948-1 |
| SLES for SAP 15 SP2 | kernel-default-base | 5.3.18-150200.24.200.1.150200.9.103.1 | SUSE-SU-2024:2923-1 |
| SLES for SAP 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.200.1 | SUSE-SU-2024:2923-1 |
| SLES for SAP 12 SP5 | kernel-azure +2 | 4.12.14-16.194.1 | SUSE-SU-2024:2901-1 |
| SLES for SAP 12 SP5 | kernel-syms +2 | 4.12.14-122.222.1 | SUSE-SU-2024:2561-1 |
| SLE Real Time 12 SP5 | kernel-rt +3 | 4.12.14-10.194.1 | SUSE-SU-2024:2493-1 |
| SLE Micro 5.5 | kernel-default | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| SLE Micro 5.5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
| SLE Micro 5.5 | kernel-rt +1 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
| SLE Micro 5.4 | kernel-default | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| SLE Micro 5.4 | kernel-default-base | 5.14.21-150400.24.122.2.150400.24.58.2 | SUSE-SU-2024:2189-1 |
| SLE Micro 5.4 | kernel-rt +1 | 5.14.21-150400.15.82.1 | SUSE-SU-2024:2011-1 |
| SLE Micro 5.3 | kernel-default | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| SLE Micro 5.3 | kernel-default-base | 5.14.21-150400.24.122.2.150400.24.58.2 | SUSE-SU-2024:2189-1 |
| SLE Micro 5.3 | kernel-rt +1 | 5.14.21-150400.15.82.1 | SUSE-SU-2024:2011-1 |
| SLE Micro 5.2 | kernel-default | 5.3.18-150300.59.170.1 | SUSE-SU-2024:2948-1 |
| SLE Micro 5.2 | kernel-default-base | 5.3.18-150300.59.170.1.150300.18.100.1 | SUSE-SU-2024:2948-1 |
| SLE Micro 5.2 | kernel-rt +1 | 5.3.18-150300.178.1 | SUSE-SU-2024:2893-1 |
| SLE Micro 5.1 | kernel-default | 5.3.18-150300.59.170.1 | SUSE-SU-2024:2948-1 |
| SLE Micro 5.1 | kernel-default-base | 5.3.18-150300.59.170.1.150300.18.100.1 | SUSE-SU-2024:2948-1 |
| SLE Micro 5.1 | kernel-rt +1 | 5.3.18-150300.178.1 | SUSE-SU-2024:2893-1 |
| SLE Live Patching 15 SP5 | kernel-default | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| SLE Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_15 +1 | 1-150500.11.3.1 | SUSE-SU-2024:2190-1, SUSE-SU-2024:2008-1 |
| SLE Live Patching 15 SP4 | kernel-default | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| SLE Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_27 | 1-150400.9.3.2 | SUSE-SU-2024:2189-1 |
| SLE Live Patching 15 SP3 | kernel-default | 5.3.18-150300.59.170.1 | SUSE-SU-2024:2948-1 |
| SLE Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_47 | 1-150300.7.3.1 | SUSE-SU-2024:2948-1 |
| SLE Live Patching 15 SP2 | kernel-default | 5.3.18-150200.24.200.1 | SUSE-SU-2024:2923-1 |
| SLE Live Patching 15 SP2 | kernel-livepatch-SLE15-SP2_Update_51 | 1-150200.5.3.1 | SUSE-SU-2024:2923-1 |
| SLE Live Patching 12 SP5 | kernel-default | 4.12.14-122.222.1 | SUSE-SU-2024:2561-1 |
| SLE Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_58 | 1-8.3.1 | SUSE-SU-2024:2561-1 |
| SLE HPC 15 SP4 | kernel-64kb +3 | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| SLE HPC 15 SP4 | kernel-default-base | 5.14.21-150400.24.122.2.150400.24.58.2 | SUSE-SU-2024:2189-1 |
| SLE HPC 15 SP4 | kernel-syms +1 | 5.14.21-150400.24.122.1 | SUSE-SU-2024:2189-1 |
| SLE HPC 15 SP3 | kernel-64kb +5 | 5.3.18-150300.59.170.1 | SUSE-SU-2024:2948-1 |
| SLE HPC 15 SP3 | kernel-default-base | 5.3.18-150300.59.170.1.150300.18.100.1 | SUSE-SU-2024:2948-1 |
| SLE HPC 15 SP3 | kernel-docs | 5.3.18-150300.59.170.2 | SUSE-SU-2024:2948-1 |
| SLE HPC 15 SP2 | kernel-default-base | 5.3.18-150200.24.200.1.150200.9.103.1 | SUSE-SU-2024:2923-1 |
| SLE HPC 15 SP2 | kernel-docs +5 | 5.3.18-150200.24.200.1 | SUSE-SU-2024:2923-1 |
| SUSE Real Time Module 15 SP5 | kernel-rt +3 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
| SUSE Manager Server 4.3 | kernel-default +1 | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| SUSE Manager Server 4.3 | kernel-default-base | 5.14.21-150400.24.122.2.150400.24.58.2 | SUSE-SU-2024:2189-1 |
| SUSE Manager Server 4.3 | kernel-syms +1 | 5.14.21-150400.24.122.1 | SUSE-SU-2024:2189-1 |
| SUSE Manager Proxy 4.3 | kernel-default | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| SUSE Manager Proxy 4.3 | kernel-default-base | 5.14.21-150400.24.122.2.150400.24.58.2 | SUSE-SU-2024:2189-1 |
| SUSE Manager Proxy 4.3 | kernel-syms +1 | 5.14.21-150400.24.122.1 | SUSE-SU-2024:2189-1 |
| SUSE Enterprise Storage 7.1 | kernel-64kb +5 | 5.3.18-150300.59.170.1 | SUSE-SU-2024:2948-1 |
| SUSE Enterprise Storage 7.1 | kernel-default-base | 5.3.18-150300.59.170.1.150300.18.100.1 | SUSE-SU-2024:2948-1 |
| SUSE Enterprise Storage 7.1 | kernel-docs | 5.3.18-150300.59.170.2 | SUSE-SU-2024:2948-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | dtb-aarch64 +10 | 5.14.21-150500.55.68.1 | SUSE-SU-2024:2190-1 |
| openSUSE Leap 15.5 | kernel-azure +2 | 5.14.21-150500.33.57.1 | SUSE-SU-2024:2019-1 |
| openSUSE Leap 15.5 | kernel-default-base | 5.14.21-150500.55.68.1.150500.6.31.1 | SUSE-SU-2024:2190-1 |
| openSUSE Leap 15.5 | kernel-rt +3 | 5.14.21-150500.13.58.1 | SUSE-SU-2024:2008-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | kernel-default | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| openSUSE Leap Micro 5.4 | kernel-default-base | 5.14.21-150400.24.122.2.150400.24.58.2 | SUSE-SU-2024:2189-1 |
| openSUSE Leap Micro 5.4 | kernel-rt | 5.14.21-150400.15.82.1 | SUSE-SU-2024:2011-1 |
| openSUSE Leap Micro 5.3 | kernel-default | 5.14.21-150400.24.122.2 | SUSE-SU-2024:2189-1 |
| openSUSE Leap Micro 5.3 | kernel-default-base | 5.14.21-150400.24.122.2.150400.24.58.2 | SUSE-SU-2024:2189-1 |
| openSUSE Leap Micro 5.3 | kernel-rt | 5.14.21-150400.15.82.1 | SUSE-SU-2024:2011-1 |
Advisories 13
- WID-SEC-2024-1235 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service und unspezifische Angriffe BSI CERT-Bund (WID) · Feb 15, 2026
- SUSE-SU-2024:2493-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2019-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2561-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2189-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2923-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2895-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2893-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2190-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2008-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2901-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2011-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2948-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
References
- https://git.kernel.org/stable/c/bafe343a885c70dddf358379cf0b2a1c07355d8d
- https://git.kernel.org/stable/c/3a3c46e2eff0577454860a203be1a8295f4acb76
- https://git.kernel.org/stable/c/affbad02bf80380a7403885b9fe4a1587d1bb4f3
- https://git.kernel.org/stable/c/3e193ef4e0a3f5bf92ede83ef214cb09d01b00aa
- https://git.kernel.org/stable/c/abb4eff3dcd2e583060082a18a8dbf31f02689d4
- https://git.kernel.org/stable/c/703dde112021c93d6e89443c070e7dbd4dea612e
- https://git.kernel.org/stable/c/6c73fc931658d8cbc8a1714b326cb31eb71d16a7
- https://git.kernel.org/stable/c/94cddf1e9227a171b27292509d59691819c458db