In the Linux kernel, the following vulnerability has been resolved:
nfsd: Fix nsfd startup race (again)
Commit bd5ae9288d64 ("nfsd: register pernet ops last, unregister first") has re-opened rpc_pipefs_event() race against nfsd_net_id registration (register_pernet_subsys()) which has been fixed by commit bb7ffbf29e76 ("nfsd: fix nsfd startup race triggering BUG_ON").
Restore the order of register_pernet_subsys() vs register_cld_notifier(). Add WARN_ON() to prevent a future regression.
Crash info: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000012 CPU: 8 PID: 345 Comm: mount Not tainted 5.4.144-... #1 pc : rpc_pipefs_event+0x54/0x120 [nfsd] lr : rpc_pipefs_event+0x48/0x120 [nfsd] Call trace: rpc_pipefs_event+0x54/0x120 [nfsd] blocking_notifier_call_chain rpc_fill_super get_tree_keyed rpc_fs_get_tree vfs_get_tree do_mount ksys_mount __arm64_sys_mount el0_svc_handler el0_svc
CVSS Details
- CVSS 3.1 Base Score: 4.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-debuginfoUpgrade bpftool-debuginfoUpgrade perf-debuginfoUpgrade kernel-toolsUpgrade python-perf-debuginfoUpgrade kernel-livepatch-5.10.93-87.444Upgrade kernel-debuginfo-common-aarch64Upgrade kernel-headersUpgrade perfUpgrade python-perfUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-develUpgrade bpftoolUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-devel | Dec 12, 2024 | May 24, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 24, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 24, 2024 |
| Suse | — | Upgrade kernel-develUpgrade kernel-rt-develUpgrade kernel-source-vanillaUpgrade kernel-64kb-develUpgrade dlm-kmp-rtUpgrade dtb-broadcomUpgrade kernel-64kb-optionalUpgrade kernel-rt_debug-develUpgrade gfs2-kmp-azureUpgrade kernel-debugUpgrade kernel-default-baseUpgrade cluster-md-kmp-64kbUpgrade kernel-default-livepatch-develUpgrade reiserfs-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade kernel-debug-vdsoUpgrade ocfs2-kmp-azureUpgrade kernel-symsUpgrade dtb-allwinnerUpgrade dtb-appleUpgrade cluster-md-kmp-rtUpgrade dtb-marvellUpgrade dtb-nvidiaUpgrade dtb-socionextUpgrade dtb-amdUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-rt-livepatchUpgrade kernel-devel-rtUpgrade dtb-xilinxUpgrade dtb-alteraUpgrade kselftests-kmp-azureUpgrade kernel-azure-extraUpgrade dtb-hisiliconUpgrade kernel-rt_debugUpgrade kselftests-kmp-rtUpgrade dlm-kmp-defaultUpgrade kernel-defaultUpgrade dtb-caviumUpgrade reiserfs-kmp-rtUpgrade kernel-64kb-extraUpgrade kernel-preempt-develUpgrade dtb-sprdUpgrade kernel-azureUpgrade dtb-renesasUpgrade dtb-mediatekUpgrade kernel-docsUpgrade kernel-default-optionalUpgrade kernel-debug-develUpgrade ocfs2-kmp-defaultUpgrade kernel-azure-optionalUpgrade kernel-kvmsmall-livepatch-develUpgrade ocfs2-kmp-rtUpgrade dtb-amlogicUpgrade kernel-debug-livepatch-develUpgrade kernel-sourceUpgrade cluster-md-kmp-defaultUpgrade kernel-kvmsmallUpgrade kernel-azure-vdsoUpgrade kernel-rt_debug-vdsoUpgrade kernel-64kbUpgrade kernel-source-rtUpgrade kernel-obs-buildUpgrade dtb-qcomUpgrade kernel-macrosUpgrade kernel-rt-vdsoUpgrade kernel-syms-rtUpgrade dtb-amazonUpgrade gfs2-kmp-64kbUpgrade kernel-64kb-livepatch-develUpgrade kernel-default-vdsoUpgrade ocfs2-kmp-64kbUpgrade kernel-devel-azureUpgrade kernel-azure-livepatch-develUpgrade kernel-preemptUpgrade kernel-default-extraUpgrade kselftests-kmp-defaultUpgrade cluster-md-kmp-azureUpgrade kselftests-kmp-64kbUpgrade kernel-obs-qaUpgrade dtb-apmUpgrade kernel-default-base-rebuildUpgrade kernel-default-develUpgrade kernel-syms-azureUpgrade kernel-source-azureUpgrade dtb-freescaleUpgrade dlm-kmp-64kbUpgrade reiserfs-kmp-64kbUpgrade kernel-zfcpdumpUpgrade kernel-kvmsmall-vdsoUpgrade kernel-rt-optionalUpgrade dtb-lgUpgrade kernel-rtUpgrade kernel-rt-livepatch-develUpgrade gfs2-kmp-rtUpgrade kernel-docs-htmlUpgrade kernel-kvmsmall-develUpgrade dtb-exynosUpgrade dtb-rockchipUpgrade kernel-azure-develUpgrade reiserfs-kmp-azureUpgrade dtb-armUpgrade kernel-default-livepatchUpgrade dlm-kmp-azureUpgrade kernel-rt-extra | Aug 9, 2024 | May 24, 2024 |
| Ubuntu | — | Upgrade linux-oracleUpgrade linux-aws-5.4Upgrade linuxUpgrade linux-raspiUpgrade linux-azureUpgrade linux-gkeopUpgrade linux-oracle-5.4Upgrade linux-gcpUpgrade linux-awsUpgrade linux-hwe-5.4Upgrade linux-azure-5.4Upgrade linux-fipsUpgrade linux-gcp-5.4Upgrade linux-kvmUpgrade linux-ibm-5.4Upgrade linux-raspi-5.4Upgrade linux-ibmUpgrade linux-bluefield | Nov 19, 2024 | May 24, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | May 24, 2024 |
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