CVE-2026-90257
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Bluetooth: virtio_bt: avoid OOB read of build info string
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: virtio_bt: avoid OOB read of build info string The virtbt_setup_zephyr() sends the Zephyr vendor command 0xfc08 (Read Build Information) and hands the response to bt_dev_info() and hci_set_fw_info() as a "%s" string starting at skb->data + 1, without checking the length. A backend that answers with status only leaves that pointer past the end of the received data, so the walk reads adjacent slab memory until it meets a NUL. Those bytes reach the kernel log and the firmware-info debugfs file. To fix this, print the string with a bounded "%.*s" limited to skb->len - 1. A short or unterminated response then prints as much as arrived instead of failing setup. This mirrors commit dd068ef04412 ("Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()"), which fixed the identical pattern.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| afd2daa26c7abd734d78bd274fc6c59a15e61063 | affected | git | fb445b3466a8d1c7a0b0d0676fb475e3ce22d94e | Unavailable | None listed |
| afd2daa26c7abd734d78bd274fc6c59a15e61063 | affected | git | d08c99abf06133a7829d46627e77e3315ca974d2 | Unavailable | None listed |
| afd2daa26c7abd734d78bd274fc6c59a15e61063 | affected | git | 0e388d805233a883a31271676eae6031dfc9e898 | Unavailable | None listed |
| afd2daa26c7abd734d78bd274fc6c59a15e61063 | affected | git | 54e9387eb7546eaa6f600220599d55740956ffc3 | Unavailable | None listed |
| afd2daa26c7abd734d78bd274fc6c59a15e61063 | affected | git | be1e3df2c49c91b0a052c6563884e8d39bd768b2 | Unavailable | None listed |
| afd2daa26c7abd734d78bd274fc6c59a15e61063 | affected | git | 84ea9c99874804f5ca13f35bbc186ba93902f30f | Unavailable | None listed |
| afd2daa26c7abd734d78bd274fc6c59a15e61063 | affected | git | 502adc06ba76dee19c292ae4a07d74d202fe734d | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.13 | Unavailable | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.52 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |