Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing The driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc() by iterating through the extra descriptor data. However, it does not verify that the bLength of each descriptor is at least 2. A malicious device could provide a descriptor with bLength = 0, leading to an infinite loop in the driver. Add a check to ensure bLength is at least 2 before proceeding with parsing.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 628329d52474323938a03826941e166bc7c8eff4 before 67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28; affected 628329d52474323938a03826941e166bc7c8eff4 before 6314bd9e2a6b3362998dc85485dd4b0f133a3532; affected 628329d52474323938a03826941e166bc7c8eff4 before 76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32; affected 628329d52474323938a03826941e166bc7c8eff4 before e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295; affected 628329d52474323938a03826941e166bc7c8eff4 before b847f2725ef47a26b3d01eca3d54fd811e5a544d; affected 628329d52474323938a03826941e166bc7c8eff4 before 383934c249a9817d242d02d30bfbc8defbf0d533; affected 628329d52474323938a03826941e166bc7c8eff4 before bbbe31486cf2d12177462e4a814244c2597c9849; affected 628329d52474323938a03826941e166bc7c8eff4 before d4579af29e67ca8722db0a1194227f8015c8981d |
| Linux / Linux | affected 3.10; unaffected 0 before 3.10; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28
- https://git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532
- https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32
- https://git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295
- https://git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d
- https://git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533
- https://git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849
- https://git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d