In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: Fix double free of 'buf' in error path
smatch warning: drivers/misc/fastrpc.c:1926 fastrpc_req_mmap() error: double free of 'buf'
In fastrpc_req_mmap() error path, the fastrpc buffer is freed in fastrpc_req_munmap_impl() if unmap is successful.
But in the end, there is an unconditional call to fastrpc_buf_free(). So the above case triggers the double free of fastrpc buf.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Suse | — | Upgrade kernel-debug-livepatch-develUpgrade kernel-macrosUpgrade ocfs2-kmp-azureUpgrade cluster-md-kmp-64kbUpgrade dtb-sprdUpgrade kernel-devel-rtUpgrade kselftests-kmp-rtUpgrade kernel-default-vdsoUpgrade reiserfs-kmp-azureUpgrade dtb-xilinxUpgrade dlm-kmp-azureUpgrade dlm-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade dtb-apmUpgrade dtb-mediatekUpgrade kselftests-kmp-defaultUpgrade kernel-kvmsmallUpgrade kernel-obs-qaUpgrade dtb-armUpgrade dtb-nvidiaUpgrade kernel-defaultUpgrade kernel-rt_debug-vdsoUpgrade ocfs2-kmp-rtUpgrade dtb-rockchipUpgrade kernel-develUpgrade kernel-symsUpgrade kernel-default-optionalUpgrade kernel-rtUpgrade cluster-md-kmp-rtUpgrade kernel-rt-develUpgrade dlm-kmp-defaultUpgrade kernel-default-base-rebuildUpgrade kernel-docsUpgrade dtb-amlogicUpgrade reiserfs-kmp-defaultUpgrade dtb-qcomUpgrade kernel-default-extraUpgrade kernel-64kb-develUpgrade kernel-debugUpgrade kernel-default-baseUpgrade dtb-alteraUpgrade kernel-default-livepatch-develUpgrade gfs2-kmp-rtUpgrade kernel-azure-develUpgrade kernel-azureUpgrade dtb-amdUpgrade kernel-source-rtUpgrade kernel-rt-extraUpgrade kernel-azure-livepatch-develUpgrade gfs2-kmp-azureUpgrade kernel-64kb-optionalUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-kvmsmall-develUpgrade cluster-md-kmp-azureUpgrade kselftests-kmp-64kbUpgrade ocfs2-kmp-defaultUpgrade kernel-rt_debugUpgrade kernel-rt-vdsoUpgrade kernel-64kb-livepatch-develUpgrade kernel-64kbUpgrade dtb-marvellUpgrade dtb-caviumUpgrade kernel-rt_debug-develUpgrade ocfs2-kmp-64kbUpgrade dtb-allwinnerUpgrade dtb-hisiliconUpgrade dtb-freescaleUpgrade kernel-azure-vdsoUpgrade kernel-debug-develUpgrade dtb-renesasUpgrade kernel-syms-azureUpgrade kernel-default-develUpgrade dlm-kmp-64kbUpgrade kernel-64kb-extraUpgrade kernel-sourceUpgrade gfs2-kmp-defaultUpgrade kernel-source-vanillaUpgrade kselftests-kmp-azureUpgrade reiserfs-kmp-rtUpgrade kernel-azure-optionalUpgrade dtb-exynosUpgrade kernel-zfcpdumpUpgrade kernel-rt-optionalUpgrade kernel-devel-azureUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-rt-livepatch-develUpgrade dtb-lgUpgrade kernel-default-livepatchUpgrade kernel-docs-htmlUpgrade dtb-broadcomUpgrade kernel-source-azureUpgrade dtb-amazonUpgrade kernel-debug-vdsoUpgrade dtb-appleUpgrade kernel-kvmsmall-vdsoUpgrade reiserfs-kmp-64kbUpgrade kernel-syms-rtUpgrade dtb-socionextUpgrade kernel-azure-extraUpgrade gfs2-kmp-64kbUpgrade kernel-obs-build | Dec 5, 2025 | Oct 8, 2024 |
| Ubuntu | — | Upgrade linux-image-oem-22.04bUpgrade linux-image-6.8.0-1019-nvidia-lowlatency-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-generic-64kUpgrade linux-image-6.8.0-50-lowlatencyUpgrade linux-image-6.8.0-1017-oracle-64kUpgrade linux-image-raspiUpgrade linux-image-oem-22.04dUpgrade linux-image-oracle-64kUpgrade linux-image-gkeUpgrade linux-image-azure-fdeUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-nvidia-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oem-24.04aUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.8.0-1020-azure-fdeUpgrade linux-image-nvidia-6.8Upgrade linux-image-6.8.0-1016-raspiUpgrade linux-image-gcpUpgrade linux-image-6.8.0-1020-azureUpgrade linux-image-azureUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.8.0-1019-nvidia-lowlatencyUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-50-genericUpgrade linux-image-awsUpgrade linux-image-6.8.0-1019-nvidiaUpgrade linux-image-6.8.0-1017-oracleUpgrade linux-image-kvmUpgrade linux-image-oem-22.04cUpgrade linux-image-gkeopUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-6.8.0-50-generic-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1018-oemUpgrade linux-image-6.8.0-50-lowlatency-64kUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1017-ibmUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-1019-gcpUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1019-nvidia-64kUpgrade linux-image-6.8.0-1015-gkeUpgrade linux-image-ibm-classicUpgrade linux-image-nvidiaUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-lowlatency-64k-hwe-24.04Upgrade linux-image-oracleUpgrade linux-image-oem-22.04Upgrade linux-image-oem-24.04Upgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-1002-gkeopUpgrade linux-image-virtualUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-ibmUpgrade linux-image-generic-lpaeUpgrade linux-image-lowlatency-hwe-24.04Upgrade linux-image-oem-22.04aUpgrade linux-image-genericUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.8.0-1020-aws | Dec 13, 2024 | Sep 18, 2024 |
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