CVE-2026-64336
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-07-25
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: USB: serial: keyspan_pda: fix information leak The write() callback is supposed to return the number of characters accepted or a negative errno. Since the addition of write fifo support the keyspan_pda implementation will however return the number characters submitted to the device if the write urb is not already in use. If this number is larger than the number of characters passed to write(), the line discipline continues writing data from beyond the tty write buffer. Fix the information leak by making sure that keyspan_pda_write_start() returns zero on success as intended.
Weakness Classification (1)
Affected Software (13)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 034e38e8f68767fb5438ae3e608ee82919674177 < b069b7029862fafaff331d4c664d97d4ae828d6d |
| Linux | Linux | 034e38e8f68767fb5438ae3e608ee82919674177 < e52ca411f50539ff1d0c877b9312771ca8a858c1 |
| Linux | Linux | 034e38e8f68767fb5438ae3e608ee82919674177 < 2f7a6b8ab3845bd1da02604f1a874b52a4555a72 |
| Linux | Linux | 034e38e8f68767fb5438ae3e608ee82919674177 < e1494191a3aac665d3a2fce16169a97c346253ec |
| Linux | Linux | 034e38e8f68767fb5438ae3e608ee82919674177 < cf6ca0aefae03958cfb5b189b0adbfb25c06bfac |
| Linux | Linux | 034e38e8f68767fb5438ae3e608ee82919674177 < d4b12b6b395e43a2b1d80be3745631fcaa9c047b |
| Linux | Linux | 034e38e8f68767fb5438ae3e608ee82919674177 < 6bfc8d01ac4068eced509f8fc74d0cd205e4dcec |
| Linux | Linux | 02407bc7d42347da7ed2a3926a0b824bfc614914 |
| Linux | Linux | 5.10.266 < 5.11 |
| Linux | Linux | 5.11 |
| linux | linux_kernel | 5.11 – 5.15.212 |
| linux | linux_kernel | 7.2 |
| linux | linux_kernel | 7.2 |