CVE-2026-90023
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)
usb: gadget: f_mass_storage: fix null pointer dereference in fsg_common_set_num_buffers()
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_mass_storage: fix null pointer dereference in fsg_common_set_num_buffers() Previously fsg_num_buffers_validate() was removed as it was not necessary due to Kconfig setting the limits for n from 2 to 256 with default as 2. However, setting the page content in such a way that kstrtou8() reflects n value as either 0 or 1 bypasses these restrictions leading to a null pointer dereference if n is 0. Fix this by adding a check for n < 2 and returning -EINVAL if n is either 0 or 1 consistent with Kconfig logic.
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) |
|---|---|---|---|---|---|
| fe5a6c48fd954489f51aab151d5dad9254c76419 | affected | git | f4f0fe3ab47ed57ee4974fdd3e9dccb7839a7ebf | Unavailable | None listed |
| fe5a6c48fd954489f51aab151d5dad9254c76419 | affected | git | 51cc9af4f2d3f0b765266aced66b9b532b423b13 | Unavailable | None listed |
| fe5a6c48fd954489f51aab151d5dad9254c76419 | affected | git | 9e8dd2a7a8ccbb756771ad985b0ad3387ed3c957 | Unavailable | None listed |
| fe5a6c48fd954489f51aab151d5dad9254c76419 | affected | git | b9b5b5df5b8dd3c1572ed267200276a44cc67d8e | Unavailable | None listed |
| fe5a6c48fd954489f51aab151d5dad9254c76419 | affected | git | 2c0f5ca48674a5b5f9fa4a9c3325aa48053af0bc | 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) |
|---|---|---|---|---|---|
| 4.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.8 | Unavailable | None listed |
| 6.6.160 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.112 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.52 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.5 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |