CVE-2024-46824— iommufd: Require drivers to supply the cache_invalidate_user ops
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I. Basic Information for CVE-2024-46824
Vulnerability Information
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Vulnerability Title
iommufd: Require drivers to supply the cache_invalidate_user ops
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommufd: Require drivers to supply the cache_invalidate_user ops If drivers don't do this then iommufd will oops invalidation ioctls with something like: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Mem abort info: ESR = 0x0000000086000004 EC = 0x21: IABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault user pgtable: 4k pages, 48-bit VAs, pgdp=0000000101059000 [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP Modules linked in: CPU: 2 PID: 371 Comm: qemu-system-aar Not tainted 6.8.0-rc7-gde77230ac23a #9 Hardware name: linux,dummy-virt (DT) pstate: 81400809 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=-c) pc : 0x0 lr : iommufd_hwpt_invalidate+0xa4/0x204 sp : ffff800080f3bcc0 x29: ffff800080f3bcf0 x28: ffff0000c369b300 x27: 0000000000000000 x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000 x23: 0000000000000000 x22: 00000000c1e334a0 x21: ffff0000c1e334a0 x20: ffff800080f3bd38 x19: ffff800080f3bd58 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffff8240d6d8 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000001000000002 x7 : 0000fffeac1ec950 x6 : 0000000000000000 x5 : ffff800080f3bd78 x4 : 0000000000000003 x3 : 0000000000000002 x2 : 0000000000000000 x1 : ffff800080f3bcc8 x0 : ffff0000c6034d80 Call trace: 0x0 iommufd_fops_ioctl+0x154/0x274 __arm64_sys_ioctl+0xac/0xf0 invoke_syscall+0x48/0x110 el0_svc_common.constprop.0+0x40/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xb4 el0t_64_sync_handler+0x120/0x12c el0t_64_sync+0x190/0x194 All existing drivers implement this op for nesting, this is mostly a bisection aid.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-46824
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Same Patch Batch · Linux · 2024-09-27 · 66 CVEs total
| CVE-2024-46846 | spi: rockchip: Resolve unbalanced runtime PM / system PM handling | |
| CVE-2024-46865 | fou: fix initialization of grc | |
| CVE-2024-46864 | x86/hyperv: fix kexec crash due to VP assist page corruption | |
| CVE-2024-46863 | ASoC: Intel: soc-acpi-intel-lnl-match: add missing empty item | |
| CVE-2024-46851 | drm/amd/display: Avoid race between dcn10_set_drr() and dc_state_destruct() | |
| CVE-2024-46852 | dma-buf: heaps: Fix off-by-one in CMA heap fault handler | |
| CVE-2024-46850 | drm/amd/display: Avoid race between dcn35_set_drr() and dc_state_destruct() | |
| CVE-2024-46849 | ASoC: meson: axg-card: fix 'use-after-free' | |
| CVE-2024-46848 | perf/x86/intel: Limit the period on Haswell | |
| CVE-2024-46847 | mm: vmalloc: ensure vmap_block is initialised before adding to queue | |
| CVE-2024-46853 | spi: nxp-fspi: fix the KASAN report out-of-bounds bug | |
| CVE-2024-46844 | um: line: always fill *error_out in setup_one_line() | |
| CVE-2024-46845 | tracing/timerlat: Only clear timer if a kthread exists | |
| CVE-2024-46843 | scsi: ufs: core: Remove SCSI host only if added | |
| CVE-2024-46841 | btrfs: don't BUG_ON on ENOMEM from btrfs_lookup_extent_info() in walk_down_proc() | |
| CVE-2024-46842 | scsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info | |
| CVE-2024-46840 | btrfs: clean up our handling of refs == 0 in snapshot delete | |
| CVE-2024-46838 | userfaultfd: don't BUG_ON() if khugepaged yanks our page table | |
| CVE-2024-46837 | drm/panthor: Restrict high priorities on group_create | |
| CVE-2024-46835 | drm/amdgpu: Fix smatch static checker warning |
Showing top 20 of 66 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2024-46824
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