In the Linux kernel, the following vulnerability has been resolved:
cifs: client: fix memory leak in smb3_fs_context_parse_param
The user calls fsconfig twice, but when the program exits, free() only frees ctx->source for the second fsconfig, not the first. Regarding fc->source, there is no code in the fs context related to its memory reclamation.
To fix this memory leak, release the source memory corresponding to ctx or fc before each parsing.
syzbot reported: BUG: memory leak unreferenced object 0xffff888128afa360 (size 96): backtrace (crc 79c9c7ba): kstrdup+0x3c/0x80 mm/util.c:84 smb3_fs_context_parse_param+0x229b/0x36c0 fs/smb/client/fs_context.c:1444
BUG: memory leak unreferenced object 0xffff888112c7d900 (size 96): backtrace (crc 79c9c7ba): smb3_fs_context_fullpath+0x70/0x1b0 fs/smb/client/fs_context.c:629 smb3_fs_context_parse_param+0x2266/0x36c0 fs/smb/client/fs_context.c:1438
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.12-libbpfUpgrade python3-perf6.12Upgrade kernel-livepatch-6.12.63-84.121Upgrade kernel6.12Upgrade perf6.12-debuginfoUpgrade bpftool6.12-debuginfoUpgrade kernel6.12-libbpf-staticUpgrade kernel6.12-develUpgrade kernel6.12-libbpf-debuginfoUpgrade kernel6.12-toolsUpgrade kernel6.12-headersUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-tools-develUpgrade kernel6.12-debuginfo-common-x86_64Upgrade perf6.12Upgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-debuginfoUpgrade kernel6.12-libbpf-develUpgrade kernel6.12-modules-extraUpgrade kernel6.12-tools-debuginfoUpgrade kernel6.12-modules-extra-commonUpgrade bpftool6.12 | Feb 20, 2026 | Dec 6, 2025 |
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Jan 15, 2026 | Dec 6, 2025 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 6, 2025 |
| Ubuntu | — | Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-nvidia-64kUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.17.0-14-genericUpgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-aws-64k-6.17Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-gkeopUpgrade linux-image-oracle-6.8Upgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-generic-64k-6.17Upgrade linux-image-gke-64kUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-generic-64kUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-gke-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-ibmUpgrade linux-image-realtime-6.17Upgrade linux-image-xilinx-6.8Upgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-lowlatency-64kUpgrade linux-image-raspi-6.8Upgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-raspiUpgrade linux-image-azure-lts-24.04Upgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-azure-fipsUpgrade linux-image-oem-22.04cUpgrade linux-image-oem-22.04aUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-lowlatency-6.8Upgrade linux-image-nvidiaUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-virtual-6.17Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-virtual-hwe-22.04Upgrade linux-image-realtime-6.8.1Upgrade linux-image-ibm-lts-24.04Upgrade linux-image-aws-lts-24.04Upgrade linux-image-azure-6.17Upgrade linux-image-genericUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-lowlatencyUpgrade linux-image-virtual-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-gke-64k-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-generic-64k-6.8Upgrade linux-image-6.17.0-1007-awsUpgrade linux-image-azureUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-generic-6.8Upgrade linux-image-oracleUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-azure-6.8Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-6.17.0-1011-oemUpgrade linux-image-realtimeUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-aws-6.17Upgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-aws-64k-6.8Upgrade linux-image-fips-6.8Upgrade linux-image-nvidia-64k-6.8Upgrade linux-image-gcp-6.17Upgrade linux-image-fipsUpgrade linux-image-aws-fips-6.8Upgrade linux-image-kvmUpgrade linux-image-gcpUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-raspi-6.17Upgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-generic-lpaeUpgrade linux-image-oem-22.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-aws-64kUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-gcp-6.8Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-intel-iotgUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-azure-fips-6.8Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-oem-22.04bUpgrade linux-image-virtualUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1050-awsUpgrade linux-image-awsUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-oem-6.17Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-xilinxUpgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-6.17Upgrade linux-image-gkeUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-ibm-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-generic-6.17Upgrade linux-image-oracle-64k | Feb 13, 2026 | Feb 12, 2026 |
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