CVEvulnerability
CVE-2024-50269
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2024-11-19
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
In the Linux kernel, the following vulnerability has been resolved:
usb: musb: sunxi: Fix accessing an released usb phy
Commit 6ed05c68cbca ("usb: musb: sunxi: Explicitly release USB PHY on
exit") will cause that usb phy @glue->xceiv is accessed after released.
1) register platform driver @sunxi_musb_driver
// get the usb phy @glue->xceiv
sunxi_musb_probe() -> devm_usb_get_phy().
2) register and unregister platform driver @musb_driver
musb_probe() -> sunxi_musb_init()
use the phy here
//the phy is released here
musb_remove() -> sunxi_musb_exit() -> devm_usb_put_phy()
3) register @musb_driver again
musb_probe() -> sunxi_musb_init()
use the phy here but the phy has been released at 2).
...
Fixed by reverting the commit, namely, removing devm_usb_put_phy()
from sunxi_musb_exit().
Affected configurations
• linux linux kernel (>= 4.4.95 < 4.5)
• linux linux kernel (>= 4.9.59 < 4.10)
• linux linux kernel (>= 4.13.10 < 4.14)
• linux linux kernel (>= 4.14 < 4.19.324)
• linux linux kernel (>= 4.20 < 5.4.286)
• linux linux kernel (>= 5.5 < 5.10.230)
• linux linux kernel (>= 5.11 < 5.15.172)
• linux linux kernel (>= 5.16 < 6.1.117)
• linux linux kernel (>= 6.2 < 6.6.61)
• linux linux kernel (>= 6.7 < 6.11.8)
• linux linux kernel 6.12
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/stable/c/498dbd9aea205db9da674994b74c7bf8e18448bd Patch
- https://git.kernel.org/stable/c/4aa77d5ea9944468e16c3eed15e858fd5de44de1 Patch
- https://git.kernel.org/stable/c/63559ba8077cbadae1c92a65b73ea522bf377dd9 Patch
- https://git.kernel.org/stable/c/6e2848d1c8c0139161e69ac0a94133e90e9988e8 Patch
- https://git.kernel.org/stable/c/721ddad945596220c123eb6f7126729fe277ee4f Patch
- https://git.kernel.org/stable/c/8a30da5aa9609663b3e05bcc91a916537f66a4cd Patch
- https://git.kernel.org/stable/c/b08baa75b989cf779cbfa0969681f8ba2dc46569 Patch
- https://git.kernel.org/stable/c/ccd811c304d2ee56189bfbc49302cb3c44361893 Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html lists.debian.org