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CVE-2024-35831— io_uring: Fix release of pinned pages when __io_uaddr_map fails

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 io_uring 存在意外释放问题。

AI Predicted 7.8 Difficulty: Hard EPSS 0.21% · P10

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 223ef474316466e9f61f6e0064f3a6fe4923a2c5< 0b6f39c175ba5f0ef72bdb3b9d2a06ad78621d62 affected
223ef474316466e9f61f6e0064f3a6fe4923a2c5< 712e2c8415f55a4a4ddaa98a430b87f624109f69 affected
223ef474316466e9f61f6e0064f3a6fe4923a2c5< 4d376d7ad62b6a8e8dfff56b559d9d275e5b9b3a affected
223ef474316466e9f61f6e0064f3a6fe4923a2c5< 67d1189d1095d471ed7fa426c7e384a7140a5dd7 affected
3f3164ce6396138747984ee9e61158e248246300 affected
6.5.7< 6.6 affected
6.6 affected
< 6.6 unaffected
… +4 more rows
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I. Basic Information for CVE-2024-35831

Vulnerability Information
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Vulnerability Title
io_uring: Fix release of pinned pages when __io_uaddr_map fails
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: io_uring: Fix release of pinned pages when __io_uaddr_map fails Looking at the error path of __io_uaddr_map, if we fail after pinning the pages for any reasons, ret will be set to -EINVAL and the error handler won't properly release the pinned pages. I didn't manage to trigger it without forcing a failure, but it can happen in real life when memory is heavily fragmented.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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 io_uring 存在意外释放问题。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 223ef474316466e9f61f6e0064f3a6fe4923a2c5 ~ 0b6f39c175ba5f0ef72bdb3b9d2a06ad78621d62 -
Linux Linux 6.6 -

II. Public POCs for CVE-2024-35831

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III. Intelligence Information for CVE-2024-35831

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Other References for CVE-2024-35831 (4)

Same Patch Batch · Linux · 2024-05-17 · 135 CVEs total

CVE-2023-52687 9.8 CRITICAL crypto: safexcel - Add error handling for dma_map_sg() calls
CVE-2024-35843 8.8 HIGH iommu/vt-d: Use device rbtree in iopf reporting path
CVE-2024-35804 8.8 HIGH KVM: x86: Mark target gfn of emulated atomic instruction as dirty
CVE-2024-35811 8.8 HIGH wifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach
CVE-2024-27416 8.8 HIGH Bluetooth: hci_event: Fix handling of HCI_EV_IO_CAPA_REQUEST
CVE-2024-27415 8.8 HIGH netfilter: bridge: confirm multicast packets before passing them up the stack
CVE-2024-35856 8.8 HIGH Bluetooth: btusb: mediatek: Fix double free of skb in coredump
CVE-2024-35834 8.2 HIGH xsk: recycle buffer in case Rx queue was full
CVE-2024-27404 8.2 HIGH mptcp: fix data races on remote_id
CVE-2023-52669 8.2 HIGH crypto: s390/aes - Fix buffer overread in CTR mode
CVE-2024-35789 8.0 HIGH wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes
CVE-2024-35793 7.8 HIGH debugfs: fix wait/cancellation handling during remove
CVE-2023-52676 7.8 HIGH bpf: Guard stack limits against 32bit overflow
CVE-2024-35810 7.8 HIGH drm/vmwgfx: Fix the lifetime of the bo cursor memory
CVE-2024-35808 7.8 HIGH md/dm-raid: don't call md_reap_sync_thread() directly
CVE-2023-52667 7.8 HIGH net/mlx5e: fix a potential double-free in fs_any_create_groups
CVE-2024-35798 7.8 HIGH btrfs: fix race in read_extent_buffer_pages()
CVE-2024-35791 7.8 HIGH KVM: SVM: Flush pages under kvm->lock to fix UAF in svm_register_enc_region()
CVE-2024-35839 7.8 HIGH netfilter: bridge: replace physindev with physinif in nf_bridge_info
CVE-2024-35835 7.8 HIGH net/mlx5e: fix a double-free in arfs_create_groups

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-35831

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