CVE-2026-64334

USB: serial: digi_acceleport: fix hard lockup on disconnect

State: Published
Severity: Not scored
Published: Jul 25, 2026
Updated: Aug 17, 2026
Reserved: Jul 19, 2026

Description

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

USB: serial: digi_acceleport: fix hard lockup on disconnect

If submitting the OOB write urb fails persistently (e.g if the device is being disconnected) the driver would loop indefinitely with interrupts disabled.

Check for urb submission errors when sending OOB commands to avoid hanging if, for example, open(), set_termios() or close() races with a physical disconnect.

This is issue was flagged by Sashiko when reviewing an unrelated change to the driver.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6e51147c2744d15730084dc89cc99180d3de4184Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6a8592ace932081ea11aea41c460a1ca0f6344a4Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 5a82d842e8c35227d7227f19e5e654df1451782cAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before bcfeae431db9986c2b313e6a760f2ac8df61e138Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 2067b3838da6e4af03bae3630414193188d754b2Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 2b7dc482f859f2d027db07ff0efc1c5df5b3451aAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 79bc131df0e50f8f663c1fdbbe952aaf193a8d39Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 5c1ea24b53bf3bfb859f0a05573997487975da23Affected
LinuxLinux	2.6.12Affected before 2.6.12Not affected 5.10.261 through 5.10.Not affected 5.15.212 through 5.15.Not affected 6.1.178 through 6.1.Not affected 6.6.145 through 6.6.Not affected 6.12.96 through 6.12.Not affected 6.18.39 through 6.18.Not affected 7.1.4 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6e51147c2744d15730084dc89cc99180d3de4184Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6a8592ace932081ea11aea41c460a1ca0f6344a4Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 5a82d842e8c35227d7227f19e5e654df1451782cAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before bcfeae431db9986c2b313e6a760f2ac8df61e138Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 2067b3838da6e4af03bae3630414193188d754b2Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 2b7dc482f859f2d027db07ff0efc1c5df5b3451aAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 79bc131df0e50f8f663c1fdbbe952aaf193a8d39Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 5c1ea24b53bf3bfb859f0a05573997487975da23Affected

LinuxLinux

2.6.12Affected
before 2.6.12Not affected
5.10.261 through 5.10.*Not affected
5.15.212 through 5.15.*Not affected
6.1.178 through 6.1.*Not affected
6.6.145 through 6.6.*Not affected
6.12.96 through 6.12.*Not affected
6.18.39 through 6.18.*Not affected
7.1.4 through 7.1.*Not affected
7.2 and laterNot affected

References

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