CVE-2024-43883

usb: vhci-hcd: Do not drop references before new references are gained

HIGH

CVSS Score

Published: August 23, 2024 at 01:08 PM UTC

Updated: August 5, 2026 at 12:04 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7

Exploit prediction

EPSS 0.7%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: usb: vhci-hcd: Do not drop references before new references are gained At a few places the driver carries stale pointers to references that can still be used. Make sure that does not happen. This strictly speaking closes ZDI-CAN-22273, though there may be similar races in the driver.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v ≥ 2.6.32.30v ≥ 2.6.33.8v ≥ 2.6.34.10v ≥ 2.6.35.12v ≥ 2.6.37.3v < 4.19.3202.6.32.30 ≤ v < 2.6.332.6.33.8 ≤ v < 2.6.342.6.34.10 ≤ v < 2.6.352.6.35.12 ≤ v < 2.6.362.6.37.3 ≤ v < 2.6.382.6.38 ≤ v < 4.19.3202.6.38 ≤ v < 5.10.2242.6.38 ≤ v < 5.15.1652.6.38 ≤ v < 5.4.2822.6.38 ≤ v < 6.1.1052.6.38 ≤ v < 6.10.52.6.38 ≤ v < 6.112.6.38 ≤ v < 6.6.464.20 ≤ v < 5.4.2825.11 ≤ v < 5.15.1655.16 ≤ v < 6.1.1055.5 ≤ v < 5.10.2246.2 ≤ v < 6.6.466.7 ≤ v < 6.10.51c8d316294916da7e2a2f1f178ca3f3bd6d7b5312.6.32.30 2.6.33.8 2.6.34.10 2.6.35.12 2.6.37.3436e52f1a628233f080605dd736594df250897ca6.11 rc1 6.11 rc275b4e6a982d38121250c90f7b9294314ac1b197606ee8aa33287dd3e6eb44c78541b87a413a325927c3fa44e24300eb827ab9f9dacce6dff9c9bb796ea4801d2035f89fc4ec4a67f49a18c35cb6715

Vendor states this is fixed in 128e82e41cf7d74a562726c1587d9d2ede1a0a37 (fixed)

Vendor states this is fixed in 4dacdb9720aaab10b6be121eae55820174d97174 (fixed)

Vendor states this is fixed in 585e6bc7d0a9bf73a8be3d3fb34e86b90cc61a14 (fixed)

Vendor states this is fixed in 5a3c473b28ae1c1f7c4dc129e30cb19ae6e96f89 (fixed)

Vendor states this is fixed in 9c3746ce8d8fcb3a2405644fc0eec7fc5312de80 (fixed)

Vendor states this is fixed in afdcfd3d6fcdeca2735ca8d994c5f2d24a368f0a (fixed)

Vendor states this is fixed in c3d0857b7fc2c49f68f89128a5440176089a8f54 (fixed)

Vendor states this is fixed in e8c1e606dab8c56cf074b43b98d0805de7322ba2 (fixed)

Affected range stops below 2.6.33, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.34, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.35, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.6.36, so it looks safe — our inference, not a vendor statement

Vendor states this is fixed in 2.6.38 (unaffected)

Vendor states this is fixed in 4.19.320 (unaffected)

Vendor states this is fixed in 5.10.224 (unaffected)

Vendor states this is fixed in 5.15.165 (unaffected)

Vendor states this is fixed in 5.4.282 (unaffected)

Vendor states this is fixed in 6.1.105 (unaffected)

Vendor states this is fixed in 6.10.5 (unaffected)

Vendor states this is fixed in 6.11 (unaffected)

Vendor states this is fixed in 6.6.46 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references