In the Linux kernel, the following vulnerability has been resolved:
mm/secretmem: fix NULL page->mapping dereference in page_is_secretmem()
Check for a NULL page->mapping before dereferencing the mapping in page_is_secretmem(), as the page's mapping can be nullified while gup() is running, e.g. by reclaim or truncation.
BUG: kernel NULL pointer dereference, address: 0000000000000068 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 6 PID: 4173897 Comm: CPU 3/KVM Tainted: G W RIP: 0010:internal_get_user_pages_fast+0x621/0x9d0 Code: <48> 81 7a 68 80 08 04 bc 0f 85 21 ff ff 8 89 c7 be RSP: 0018:ffffaa90087679b0 EFLAGS: 00010046 RAX: ffffe3f37905b900 RBX: 00007f2dd561e000 RCX: ffffe3f37905b934 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffe3f37905b900 ... CR2: 0000000000000068 CR3: 00000004c5898003 CR4: 00000000001726e0 Call Trace: get_user_pages_fast_only+0x13/0x20 hva_to_pfn+0xa9/0x3e0 try_async_pf+0xa1/0x270 direct_page_fault+0x113/0xad0 kvm_mmu_page_fault+0x69/0x680 vmx_handle_exit+0xe1/0x5d0 kvm_arch_vcpu_ioctl_run+0xd81/0x1c70 kvm_vcpu_ioctl+0x267/0x670 __x64_sys_ioctl+0x83/0xa0 do_syscall_64+0x56/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | May 22, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 22, 2024 |
| Suse | — | Upgrade kernel-azure-develUpgrade kernel-default-develUpgrade cluster-md-kmp-azureUpgrade kernel-64kbUpgrade ocfs2-kmp-rtUpgrade kernel-kvmsmall-develUpgrade kernel-devel-rtUpgrade dtb-apmUpgrade kernel-devel-azureUpgrade dtb-exynosUpgrade kselftests-kmp-azureUpgrade kernel-rt-vdsoUpgrade dlm-kmp-64kbUpgrade kernel-macrosUpgrade kernel-rt_debug-develUpgrade reiserfs-kmp-64kbUpgrade kernel-rt-livepatchUpgrade kernel-rtUpgrade kernel-sourceUpgrade kernel-debug-livepatch-develUpgrade kernel-develUpgrade dtb-alteraUpgrade dtb-broadcomUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-kvmsmallUpgrade kernel-source-azureUpgrade kernel-syms-azureUpgrade kernel-default-base-rebuildUpgrade gfs2-kmp-azureUpgrade reiserfs-kmp-azureUpgrade kernel-default-livepatchUpgrade kselftests-kmp-64kbUpgrade ocfs2-kmp-64kbUpgrade dtb-mediatekUpgrade kernel-rt-optionalUpgrade dtb-caviumUpgrade dtb-freescaleUpgrade kernel-symsUpgrade gfs2-kmp-64kbUpgrade kernel-default-extraUpgrade dtb-amazonUpgrade kernel-64kb-livepatch-develUpgrade kernel-default-optionalUpgrade kernel-default-vdsoUpgrade kernel-azure-livepatch-develUpgrade kernel-zfcpdumpUpgrade kernel-rt-develUpgrade dtb-lgUpgrade gfs2-kmp-rtUpgrade dtb-qcomUpgrade kernel-source-rtUpgrade cluster-md-kmp-rtUpgrade dtb-xilinxUpgrade kernel-azure-optionalUpgrade kernel-obs-qaUpgrade dtb-amlogicUpgrade kernel-azure-vdsoUpgrade kernel-debug-develUpgrade dtb-rockchipUpgrade dtb-marvellUpgrade kernel-default-livepatch-develUpgrade kernel-defaultUpgrade kernel-docs-htmlUpgrade dlm-kmp-defaultUpgrade gfs2-kmp-defaultUpgrade kernel-64kb-extraUpgrade kernel-rt_debug-livepatch-develUpgrade dtb-amdUpgrade kernel-source-vanillaUpgrade dtb-nvidiaUpgrade kernel-rt_debugUpgrade dlm-kmp-rtUpgrade kernel-64kb-develUpgrade kernel-debugUpgrade kernel-azureUpgrade kernel-obs-buildUpgrade dtb-sprdUpgrade dtb-renesasUpgrade kselftests-kmp-rtUpgrade kernel-default-baseUpgrade kernel-rt-extraUpgrade cluster-md-kmp-defaultUpgrade dtb-socionextUpgrade cluster-md-kmp-64kbUpgrade kernel-azure-extraUpgrade reiserfs-kmp-defaultUpgrade kselftests-kmp-defaultUpgrade dtb-hisiliconUpgrade kernel-syms-rtUpgrade ocfs2-kmp-azureUpgrade dtb-allwinnerUpgrade kernel-debug-vdsoUpgrade kernel-kvmsmall-vdsoUpgrade dtb-armUpgrade dtb-appleUpgrade dlm-kmp-azureUpgrade ocfs2-kmp-defaultUpgrade kernel-rt-livepatch-develUpgrade kernel-rt_debug-vdsoUpgrade reiserfs-kmp-rtUpgrade kernel-64kb-optionalUpgrade kernel-docs | Aug 9, 2024 | May 22, 2024 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub