CVE-2024-26786— iommufd: Fix iopt_access_list_id overwrite bug
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I. Basic Information for CVE-2024-26786
Vulnerability Information
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Vulnerability Title
iommufd: Fix iopt_access_list_id overwrite bug
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iommufd: Fix iopt_access_list_id overwrite bug Syzkaller reported the following WARN_ON: WARNING: CPU: 1 PID: 4738 at drivers/iommu/iommufd/io_pagetable.c:1360 Call Trace: iommufd_access_change_ioas+0x2fe/0x4e0 iommufd_access_destroy_object+0x50/0xb0 iommufd_object_remove+0x2a3/0x490 iommufd_object_destroy_user iommufd_access_destroy+0x71/0xb0 iommufd_test_staccess_release+0x89/0xd0 __fput+0x272/0xb50 __fput_sync+0x4b/0x60 __do_sys_close __se_sys_close __x64_sys_close+0x8b/0x110 do_syscall_x64 The mismatch between the access pointer in the list and the passed-in pointer is resulting from an overwrite of access->iopt_access_list_id, in iopt_add_access(). Called from iommufd_access_change_ioas() when xa_alloc() succeeds but iopt_calculate_iova_alignment() fails. Add a new_id in iopt_add_access() and only update iopt_access_list_id when returning successfully.
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，该漏洞源于列表中的访问指针与传入的不匹配。
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-2024-26786
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Same Patch Batch · Linux · 2024-04-04 · 32 CVEs total
| CVE-2024-26793 | gtp: fix use-after-free and null-ptr-deref in gtp_newlink() | |
| CVE-2024-26809 | netfilter: nft_set_pipapo: release elements in clone only from destroy path | |
| CVE-2024-26808 | netfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain | |
| CVE-2024-26807 | spi: cadence-qspi: fix pointer reference in runtime PM hooks | |
| CVE-2024-26806 | spi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks | |
| CVE-2024-26805 | netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter | |
| CVE-2024-26804 | net: ip_tunnel: prevent perpetual headroom growth | |
| CVE-2024-26803 | net: veth: clear GRO when clearing XDP even when down | |
| CVE-2024-26802 | stmmac: Clear variable when destroying workqueue | |
| CVE-2024-26800 | tls: fix use-after-free on failed backlog decryption | |
| CVE-2024-26801 | Bluetooth: Avoid potential use-after-free in hci_error_reset | |
| CVE-2024-26799 | ASoC: qcom: Fix uninitialized pointer dmactl | |
| CVE-2024-26798 | fbcon: always restore the old font data in fbcon_do_set_font() | |
| CVE-2024-26797 | drm/amd/display: Prevent potential buffer overflow in map_hw_resources | |
| CVE-2024-26796 | drivers: perf: ctr_get_width function for legacy is not defined | |
| CVE-2024-26795 | riscv: Sparse-Memory/vmemmap out-of-bounds fix | |
| CVE-2024-26745 | powerpc/pseries/iommu: IOMMU table is not initialized for kdump over SR-IOV | |
| CVE-2024-26792 | btrfs: fix double free of anonymous device after snapshot creation failure | |
| CVE-2024-26791 | btrfs: dev-replace: properly validate device names | |
| CVE-2024-26790 | dmaengine: fsl-qdma: fix SoC may hang on 16 byte unaligned read |
Showing top 20 of 32 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-2024-26786
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