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CVE-2024-26791— btrfs: dev-replace: properly validate device names

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btrfs dev-replace未正确验证设备名称，可能会导致越界读取。

AI Predicted 5.5 Difficulty: Easy EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux e93c89c1aaaaaec3487c4c18dd02360371790722< 11d7a2e429c02d51e2dc90713823ea8b8d3d3a84 affected
e93c89c1aaaaaec3487c4c18dd02360371790722< c6652e20d7d783d060fe5f987eac7b5cabe31311 affected
e93c89c1aaaaaec3487c4c18dd02360371790722< 2886fe308a83968dde252302884a1e63351cf16d affected
e93c89c1aaaaaec3487c4c18dd02360371790722< ab2d68655d0f04650bef09fee948ff80597c5fb9 affected
e93c89c1aaaaaec3487c4c18dd02360371790722< f590040ce2b712177306b03c2a63b16f7d48d3c8 affected
e93c89c1aaaaaec3487c4c18dd02360371790722< b1690ced4d2d8b28868811fb81cd33eee5aefee1 affected
e93c89c1aaaaaec3487c4c18dd02360371790722< 343eecb4ff49a7b1cc1dfe86958a805cf2341cfb affected
e93c89c1aaaaaec3487c4c18dd02360371790722< 9845664b9ee47ce7ee7ea93caf47d39a9d4552c4 affected
… +10 more rows
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I. Basic Information for CVE-2024-26791

Vulnerability Information
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Vulnerability Title
btrfs: dev-replace: properly validate device names
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: dev-replace: properly validate device names There's a syzbot report that device name buffers passed to device replace are not properly checked for string termination which could lead to a read out of bounds in getname_kernel(). Add a helper that validates both source and target device name buffers. For devid as the source initialize the buffer to empty string in case something tries to read it later. This was originally analyzed and fixed in a different way by Edward Adam Davis (see links).
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btrfs dev-replace未正确验证设备名称，可能会导致越界读取。
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 e93c89c1aaaaaec3487c4c18dd02360371790722 ~ 11d7a2e429c02d51e2dc90713823ea8b8d3d3a84 -
Linux Linux 3.8 -

II. Public POCs for CVE-2024-26791

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III. Intelligence Information for CVE-2024-26791

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Mailing List Discussions for CVE-2024-26791 (2)

Other References for CVE-2024-26791 (8)

Same Patch Batch · Linux · 2024-04-04 · 32 CVEs total

CVE-2024-26782 9.8 CRITICAL mptcp: fix double-free on socket dismantle
CVE-2024-26800 9.8 CRITICAL tls: fix use-after-free on failed backlog decryption
CVE-2024-26801 8.8 HIGH Bluetooth: Avoid potential use-after-free in hci_error_reset
CVE-2024-26793 7.8 HIGH gtp: fix use-after-free and null-ptr-deref in gtp_newlink()
CVE-2024-26809 7.8 HIGH netfilter: nft_set_pipapo: release elements in clone only from destroy path
CVE-2024-26808 7.8 HIGH netfilter: nft_chain_filter: handle NETDEV_UNREGISTER for inet/ingress basechain
CVE-2024-26807 7.8 HIGH spi: cadence-qspi: fix pointer reference in runtime PM hooks
CVE-2024-26804 7.8 HIGH net: ip_tunnel: prevent perpetual headroom growth
CVE-2024-26802 7.8 HIGH stmmac: Clear variable when destroying workqueue
CVE-2024-26797 7.8 HIGH drm/amd/display: Prevent potential buffer overflow in map_hw_resources
CVE-2024-26795 7.8 HIGH riscv: Sparse-Memory/vmemmap out-of-bounds fix
CVE-2024-26792 7.8 HIGH btrfs: fix double free of anonymous device after snapshot creation failure
CVE-2024-26786 7.8 HIGH iommufd: Fix iopt_access_list_id overwrite bug
CVE-2024-26789 7.8 HIGH crypto: arm64/neonbs - fix out-of-bounds access on short input
CVE-2024-26799 7.0 HIGH ASoC: qcom: Fix uninitialized pointer dmactl
CVE-2024-26785 iommufd: Fix protection fault in iommufd_test_syz_conv_iova
CVE-2024-26746 dmaengine: idxd: Ensure safe user copy of completion record
CVE-2024-26750 af_unix: Drop oob_skb ref before purging queue in GC.
CVE-2024-26780 af_unix: Fix task hung while purging oob_skb in GC.
CVE-2024-26806 spi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26791

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