5.5

CVE-2024-42244

USB: serial: mos7840: fix crash on resume

In the Linux kernel, the following vulnerability has been resolved:

USB: serial: mos7840: fix crash on resume

Since commit c49cfa917025 ("USB: serial: use generic method if no
alternative is provided in usb serial layer"), USB serial core calls the
generic resume implementation when the driver has not provided one.

This can trigger a crash on resume with mos7840 since support for
multiple read URBs was added back in 2011. Specifically, both port read
URBs are now submitted on resume for open ports, but the context pointer
of the second URB is left set to the core rather than mos7840 port
structure.

Fix this by implementing dedicated suspend and resume functions for
mos7840.

Tested with Delock 87414 USB 2.0 to 4x serial adapter.

[ johan: analyse crash and rewrite commit message; set busy flag on
         resume; drop bulk-in check; drop unnecessary usb_kill_urb() ]
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.3 < 5.10.222
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.163
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.100
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.41
Linux ≫ Linux Kernel Version >= 6.7 < 6.9.10
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.133
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/1094ed500987e67a9d18b0f95e1812f1cc720856
Patch
https://git.kernel.org/stable/c/553e67dec846323b5575e78a776cf594c13f98c4
Patch
https://git.kernel.org/stable/c/5ae6a64f18211851c8df6b4221381c438b9a7348
Patch
https://git.kernel.org/stable/c/932a86a711c722b45ed47ba2103adca34d225b33
Patch
https://git.kernel.org/stable/c/b14aa5673e0a8077ff4b74f0bb260735e7d5e6a4
Patch
https://git.kernel.org/stable/c/c15a688e49987385baa8804bf65d570e362f8576
Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html