In the Linux kernel, the following vulnerability has been resolved:
md/md-bitmap: fix GPF in bitmap_get_stats()
The commit message of commit 6ec1f0239485 ("md/md-bitmap: fix stats collection for external bitmaps") states:
Remove the external bitmap check as the statistics should be available regardless of bitmap storage location.
Return -EINVAL only for invalid bitmap with no storage (neither in superblock nor in external file).
But, the code does not adhere to the above, as it does only check for a valid super-block for "internal" bitmaps. Hence, we observe:
Oops: GPF, probably for non-canonical address 0x1cd66f1f40000028 RIP: 0010:bitmap_get_stats+0x45/0xd0 Call Trace:
seq_read_iter+0x2b9/0x46a seq_read+0x12f/0x180 proc_reg_read+0x57/0xb0 vfs_read+0xf6/0x380 ksys_read+0x6d/0xf0 do_syscall_64+0x8c/0x1b0 entry_SYSCALL_64_after_hwframe+0x76/0x7e
We fix this by checking the existence of a super-block for both the internal and external case.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.12Upgrade kernel-toolsUpgrade python3-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade bpftool6.12-debuginfoUpgrade perf-debuginfoUpgrade kernel-libbpf-debuginfoUpgrade kernel-modules-extra-commonUpgrade kernel6.12-headersUpgrade kernel6.12-libbpf-develUpgrade perfUpgrade bpftoolUpgrade kernel6.12-libbpf-debuginfoUpgrade perf6.12Upgrade bpftool6.12Upgrade kernel-livepatch-6.1.147-172.266Upgrade kernelUpgrade kernel6.12-toolsUpgrade kernel6.12-modules-extraUpgrade kernel-libbpf-staticUpgrade python3-perf6.12Upgrade kernel-libbpfUpgrade kernel6.12-tools-debuginfoUpgrade kernel-libbpf-develUpgrade kernel-tools-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-tools-develUpgrade kernel-modules-extraUpgrade kernel-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel6.12-modules-extra-commonUpgrade kernel6.12-debuginfo-common-aarch64Upgrade kernel6.12-debuginfo-common-x86_64Upgrade kernel-livepatch-6.12.40-63.114Upgrade python3-perfUpgrade perf6.12-debuginfoUpgrade kernel6.12-develUpgrade kernel6.12-libbpf-staticUpgrade kernel6.12-tools-develUpgrade python3-perf6.12-debuginfoUpgrade kernel6.12-libbpfUpgrade kernel6.12-debuginfo | Oct 16, 2025 | Jul 25, 2025 |
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Jul 28, 2025 | Jul 28, 2025 |
| Suse | — | Upgrade kernel-kvmsmallUpgrade kselftests-kmp-defaultUpgrade kselftests-kmp-rtUpgrade dtb-mediatekUpgrade dtb-xilinxUpgrade kernel-64kb-develUpgrade gfs2-kmp-rtUpgrade kernel-kvmsmall-develUpgrade kernel-zfcpdumpUpgrade kernel-symsUpgrade kernel-rtUpgrade dlm-kmp-defaultUpgrade dtb-armUpgrade dtb-hisiliconUpgrade dtb-socionextUpgrade gfs2-kmp-64kbUpgrade kernel-obs-qaUpgrade kernel-64kb-optionalUpgrade kernel-default-extraUpgrade kernel-rt-livepatch-develUpgrade kernel-rt-develUpgrade dtb-apmUpgrade kernel-docsUpgrade cluster-md-kmp-defaultUpgrade dtb-amlogicUpgrade ocfs2-kmp-rtUpgrade kernel-macrosUpgrade dtb-qcomUpgrade ocfs2-kmp-defaultUpgrade kernel-sourceUpgrade kernel-default-livepatchUpgrade dtb-lgUpgrade dlm-kmp-64kbUpgrade kernel-default-livepatch-develUpgrade dtb-marvellUpgrade dlm-kmp-rtUpgrade kernel-64kbUpgrade kselftests-kmp-64kbUpgrade dtb-rockchipUpgrade kernel-defaultUpgrade cluster-md-kmp-64kbUpgrade ocfs2-kmp-64kbUpgrade kernel-develUpgrade dtb-amazonUpgrade dtb-appleUpgrade dtb-alteraUpgrade gfs2-kmp-defaultUpgrade dtb-allwinnerUpgrade kernel-rt-livepatchUpgrade dtb-amdUpgrade dtb-nvidiaUpgrade dtb-caviumUpgrade kernel-kvmsmall-vdsoUpgrade kernel-default-vdsoUpgrade dtb-freescaleUpgrade kernel-docs-htmlUpgrade dtb-sprdUpgrade kernel-rt-vdsoUpgrade kernel-rt-extraUpgrade kernel-obs-buildUpgrade kernel-source-vanillaUpgrade kernel-default-optionalUpgrade kernel-rt-optionalUpgrade cluster-md-kmp-rtUpgrade kernel-default-develUpgrade dtb-exynosUpgrade dtb-broadcomUpgrade kernel-64kb-extraUpgrade dtb-renesas | Dec 5, 2025 | Nov 6, 2025 |
| Ubuntu | — | Upgrade linux-image-6.14.0-1020-gcpUpgrade linux-image-genericUpgrade linux-image-6.14.0-1017-aws-64kUpgrade linux-image-oem-24.04Upgrade linux-image-oracle-64k-6.14Upgrade linux-image-virtualUpgrade linux-image-oracleUpgrade linux-image-oem-6.14Upgrade linux-image-oracle-6.14Upgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-generic-64kUpgrade linux-image-azure-6.14Upgrade linux-image-gcp-64kUpgrade linux-image-virtual-6.14Upgrade linux-image-oracle-64kUpgrade linux-image-6.14.0-1016-oemUpgrade linux-image-gcp-6.14Upgrade linux-image-6.14.0-1020-gcp-64kUpgrade linux-image-gcpUpgrade linux-image-azureUpgrade linux-image-6.14.0-36-generic-64kUpgrade linux-image-6.14.0-1017-azureUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-generic-64k-6.14Upgrade linux-image-6.14.0-36-genericUpgrade linux-image-aws-64k-6.14Upgrade linux-image-6.14.0-1017-oracleUpgrade linux-image-raspiUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-realtime-6.14Upgrade linux-image-aws-6.14Upgrade linux-image-realtimeUpgrade linux-image-6.14.0-1018-raspiUpgrade linux-image-6.14.0-1017-awsUpgrade linux-image-oem-24.04aUpgrade linux-image-generic-6.14Upgrade linux-image-gcp-64k-6.14Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-raspi-6.14Upgrade linux-image-aws-64kUpgrade linux-image-6.14.0-1016-realtimeUpgrade linux-image-6.14.0-1017-oracle-64kUpgrade linux-image-aws | Jul 31, 2025 | Jul 25, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 20, 2025 | Jul 25, 2025 |
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