CVE-2022-41858: Null Pointer Dereference
First published: Tue Apr 05 2022(Updated: )
A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to crash the system or leak internal kernel information.
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <4.9.311 | |
| Linux Linux kernel | >=4.10<4.14.276 | |
| Linux Linux kernel | >=4.15<4.19.239 | |
| Linux Linux kernel | >=4.20<5.4.190 | |
| Linux Linux kernel | >=5.5.0<5.10.112 | |
| Linux Linux kernel | >=5.11<5.15.35 | |
| Linux Linux kernel | >=5.16<5.17.4 | |
| Netapp Hci Baseboard Management Controller | =h300s | |
| Netapp Hci Baseboard Management Controller | =h410c | |
| Netapp Hci Baseboard Management Controller | =h410s | |
| Netapp Hci Baseboard Management Controller | =h500s | |
| Netapp Hci Baseboard Management Controller | =h700s | |
| redhat/kernel | <5.18 | 5.18 |
| IBM QRadar SIEM | <=7.5 - 7.5.0 UP8 IF01 | |
| ubuntu/linux | <4.15.0-189.200 | 4.15.0-189.200 |
| ubuntu/linux | <5.4.0-122.138 | 5.4.0-122.138 |
| ubuntu/linux | <5.15.0-35.36 | 5.15.0-35.36 |
| ubuntu/linux | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux | <4.4.0-237.271 | 4.4.0-237.271 |
| ubuntu/linux-aws | <4.15.0-1137.148 | 4.15.0-1137.148 |
| ubuntu/linux-aws | <5.4.0-1081.88 | 5.4.0-1081.88 |
| ubuntu/linux-aws | <5.15.0-1009.11 | 5.15.0-1009.11 |
| ubuntu/linux-aws | <4.4.0-1116.122 | 4.4.0-1116.122 |
| ubuntu/linux-aws | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-aws | <4.4.0-1154.169 | 4.4.0-1154.169 |
| ubuntu/linux-aws-5.0 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-aws-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-aws-5.4 | <5.4.0-1081.88~18.04.1 | 5.4.0-1081.88~18.04.1 |
| ubuntu/linux-aws-5.4 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-aws-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-aws-fips | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-aws-hwe | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-aws-hwe | <4.15.0-1137.148~16.04.1 | 4.15.0-1137.148~16.04.1 |
| ubuntu/linux-azure | <5.4.0-1086.91 | 5.4.0-1086.91 |
| ubuntu/linux-azure | <5.15.0-1008.9 | 5.15.0-1008.9 |
| ubuntu/linux-azure | <4.15.0-1146.161~14.04.1 | 4.15.0-1146.161~14.04.1 |
| ubuntu/linux-azure | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-azure | <4.15.0-1146.161~16.04.1 | 4.15.0-1146.161~16.04.1 |
| ubuntu/linux-azure-4.15 | <4.15.0-1146.161 | 4.15.0-1146.161 |
| ubuntu/linux-azure-4.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-azure-5.15 | <5.15.0-1008.9~20.04.1 | 5.15.0-1008.9~20.04.1 |
| ubuntu/linux-azure-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-azure-5.4 | <5.4.0-1086.91~18.04.1 | 5.4.0-1086.91~18.04.1 |
| ubuntu/linux-azure-5.4 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-azure-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-azure-edge | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-azure-fde | <5.4.0-1086.91 | 5.4.0-1086.91 |
| ubuntu/linux-azure-fde | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-azure-fde-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-azure-fips | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-bluefield | <5.4.0-1042.47 | 5.4.0-1042.47 |
| ubuntu/linux-bluefield | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-dell300x | <4.15.0-1049.54 | 4.15.0-1049.54 |
| ubuntu/linux-dell300x | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-fips | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gcp | <5.4.0-1084.92 | 5.4.0-1084.92 |
| ubuntu/linux-gcp | <5.15.0-1006.9 | 5.15.0-1006.9 |
| ubuntu/linux-gcp | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gcp | <4.15.0-1131.147~16.04.1 | 4.15.0-1131.147~16.04.1 |
| ubuntu/linux-gcp-4.15 | <4.15.0-1131.147 | 4.15.0-1131.147 |
| ubuntu/linux-gcp-4.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gcp-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gcp-5.4 | <5.4.0-1084.92~18.04.1 | 5.4.0-1084.92~18.04.1 |
| ubuntu/linux-gcp-5.4 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gcp-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gcp-fips | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gke | <5.4.0-1078.84 | 5.4.0-1078.84 |
| ubuntu/linux-gke | <5.15.0-1006.7 | 5.15.0-1006.7 |
| ubuntu/linux-gke | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gke-4.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gke-5.0 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gke-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gke-5.4 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gkeop | <5.4.0-1049.52 | 5.4.0-1049.52 |
| ubuntu/linux-gkeop | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gkeop-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-gkeop-5.4 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-hwe | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-hwe | <4.15.0-189.200~16.04.1 | 4.15.0-189.200~16.04.1 |
| ubuntu/linux-hwe-5.15 | <5.15.0-41.44~20.04.1 | 5.15.0-41.44~20.04.1 |
| ubuntu/linux-hwe-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-hwe-5.4 | <5.4.0-122.138~18.04.1 | 5.4.0-122.138~18.04.1 |
| ubuntu/linux-hwe-5.4 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-hwe-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-hwe-edge | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-ibm | <5.4.0-1029.33 | 5.4.0-1029.33 |
| ubuntu/linux-ibm | <5.15.0-1005.5 | 5.15.0-1005.5 |
| ubuntu/linux-ibm | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-ibm-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-ibm-5.4 | <5.4.0-1029.33~18.04.1 | 5.4.0-1029.33~18.04.1 |
| ubuntu/linux-ibm-5.4 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-intel | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-intel-5.13 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-intel-iotg | <5.15.0-1008.11 | 5.15.0-1008.11 |
| ubuntu/linux-intel-iotg | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1008.11~20.04.1 | 5.15.0-1008.11~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-iot | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-kvm | <4.15.0-1123.128 | 4.15.0-1123.128 |
| ubuntu/linux-kvm | <5.4.0-1071.76 | 5.4.0-1071.76 |
| ubuntu/linux-kvm | <5.15.0-1008.8 | 5.15.0-1008.8 |
| ubuntu/linux-kvm | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-kvm | <4.4.0-1117.127 | 4.4.0-1117.127 |
| ubuntu/linux-laptop | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-lowlatency | <5.15.0-35.36 | 5.15.0-35.36 |
| ubuntu/linux-lowlatency | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-42.45~20.04.1 | 5.15.0-42.45~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-lowlatency-hwe-5.19 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-lowlatency-hwe-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-lts-xenial | <4.4.0-237.271~14.04.1 | 4.4.0-237.271~14.04.1 |
| ubuntu/linux-lts-xenial | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-nvidia | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-nvidia-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem-5.10 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem-5.14 | <5.14.0-1036.40 | 5.14.0-1036.40 |
| ubuntu/linux-oem-5.14 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem-5.17 | <5.17.0-1011.12 | 5.17.0-1011.12 |
| ubuntu/linux-oem-5.17 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem-5.6 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem-6.0 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem-6.1 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem-6.8 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oem-osp1 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oracle | <4.15.0-1102.113 | 4.15.0-1102.113 |
| ubuntu/linux-oracle | <5.4.0-1079.87 | 5.4.0-1079.87 |
| ubuntu/linux-oracle | <5.15.0-1007.9 | 5.15.0-1007.9 |
| ubuntu/linux-oracle | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oracle | <4.15.0-1102.113~16.04.1 | 4.15.0-1102.113~16.04.1 |
| ubuntu/linux-oracle-5.0 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oracle-5.13 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oracle-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oracle-5.4 | <5.4.0-1079.87~18.04.1 | 5.4.0-1079.87~18.04.1 |
| ubuntu/linux-oracle-5.4 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-oracle-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-raspi | <5.4.0-1066.76 | 5.4.0-1066.76 |
| ubuntu/linux-raspi | <5.15.0-1011.13 | 5.15.0-1011.13 |
| ubuntu/linux-raspi | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-raspi-5.4 | <5.4.0-1066.76~18.04.1 | 5.4.0-1066.76~18.04.1 |
| ubuntu/linux-raspi-5.4 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-raspi2 | <4.15.0-1115.123 | 4.15.0-1115.123 |
| ubuntu/linux-raspi2 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-riscv | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-riscv-5.15 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-riscv-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-snapdragon | <4.15.0-1133.143 | 4.15.0-1133.143 |
| ubuntu/linux-snapdragon | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-starfive | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-starfive-6.5 | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| ubuntu/linux-xilinx-zynqmp | <5.18~<5.4.190<5.15.35 | 5.18~ 5.4.190 5.15.35 |
| debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.9-1 6.9.10-1 |
Remedy
This flaw can be mitigated by preventing the affected slip driver from loading during the boot time, and ensuring the module is added to the blacklist file. ~~~ Refer: How do I blacklist a kernel module to prevent it from loading automatically? https://access.redhat.com/solutions/41278 ~~~
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-41858 https://nvd.nist.gov/vuln/detail/CVE-2022-41858 https://github.com/torvalds/linux/commit/ec4eb8a86ade4d22633e1da2a7d85a846b7d1798
- https://bugzilla.redhat.com/show_bug.cgi?id=2144379
- https://access.redhat.com/security/cve/CVE-2022-41858
- https://github.com/torvalds/linux/commit/ec4eb8a86ade4d22633e1da2a7d85a846b7d1798
- https://security.netapp.com/advisory/ntap-20230223-0006/
- https://launchpad.net/bugs/cve/CVE-2022-41858
- https://git.kernel.org/linus/ec4eb8a86ade4d22633e1da2a7d85a846b7d1798 (5.18-rc2)
- https://ubuntu.com/security/notices/USN-5884-1
- https://ubuntu.com/security/notices/USN-5926-1
- https://www.cve.org/CVERecord?id=CVE-2022-41858
- https://nvd.nist.gov/vuln/detail/CVE-2022-41858
- https://security-tracker.debian.org/tracker/CVE-2022-41858
- https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
- https://git.kernel.org/linus/ec4eb8a86ade4d22633e1da2a7d85a846b7d1798
- https://ubuntu.com/security/CVE-2022-41858
- https://access.redhat.com/errata/RHSA-2024:0431
- https://access.redhat.com/errata/RHSA-2024:0432
- https://access.redhat.com/errata/RHSA-2024:0461
- https://access.redhat.com/errata/RHSA-2024:0439
- https://access.redhat.com/errata/RHSA-2024:0448
- https://access.redhat.com/errata/RHSA-2024:0412
- https://access.redhat.com/errata/RHSA-2024:0881
- https://access.redhat.com/errata/RHSA-2024:0897
- https://access.redhat.com/errata/RHSA-2024:1268
- https://access.redhat.com/errata/RHSA-2024:1269
- https://access.redhat.com/errata/RHSA-2024:1367
- https://access.redhat.com/errata/RHSA-2024:1382
- https://access.redhat.com/errata/RHSA-2024:1404
- https://exchange.xforce.ibmcloud.com/vulnerabilities/241807
- https://www.ibm.com/support/pages/node/7150684 (Advisory)
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