CVE-2025-40315
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
usb: gadget: f_fs: Fix epfile null pointer access after ep enable.
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_fs: Fix epfile null pointer access after ep enable. A race condition occurs when ffs_func_eps_enable() runs concurrently with ffs_data_reset(). The ffs_data_clear() called in ffs_data_reset() sets ffs->epfiles to NULL before resetting ffs->eps_count to 0, leading to a NULL pointer dereference when accessing epfile->ep in ffs_func_eps_enable() after successful usb_ep_enable(). The ffs->epfiles pointer is set to NULL in both ffs_data_clear() and ffs_data_close() functions, and its modification is protected by the spinlock ffs->eps_lock. And the whole ffs_func_eps_enable() function is also protected by ffs->eps_lock. Thus, add NULL pointer handling for ffs->epfiles in the ffs_func_eps_enable() function to fix issues
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) |
|---|---|---|---|---|---|
| c9fc422c9a43e3d58d246334a71f3390401781dc | affected | git | b00d2572c16e8e59e979960d3383c2ae9cebd195 | Unavailable | None listed |
| 0042178a69eb77a979e36a50dcce9794a3140ef8 | affected | git | 1c0dbd240be3f87cac321b14e17979b7e9cb6a8f | Unavailable | None listed |
| 72a8aee863af099d4434314c4536d6c9a61dcf3c | affected | git | 9ec40fba7357df2d36f4c2e2f3b9b1a4fba0a272 | Unavailable | None listed |
| ebe2b1add1055b903e2acd86b290a85297edc0b3 | affected | git | c53e90563bc148e4e0ad09fe130ba2246d426ea6 | Unavailable | None listed |
| ebe2b1add1055b903e2acd86b290a85297edc0b3 | affected | git | fc1141a530dfc91f0ee19b7f422a2d24829584bc | Unavailable | None listed |
| ebe2b1add1055b903e2acd86b290a85297edc0b3 | affected | git | d62b808d5c68a931ad0849a00a5e3be3dd7e0019 | Unavailable | None listed |
| ebe2b1add1055b903e2acd86b290a85297edc0b3 | affected | git | 30880e9df27332403dd638a82c27921134b3630b | Unavailable | None listed |
| ebe2b1add1055b903e2acd86b290a85297edc0b3 | affected | git | cfd6f1a7b42f62523c96d9703ef32b0dbc495ba4 | Unavailable | None listed |
| 32048f4be071f9a6966744243f1786f45bb22dc2 | affected | git | Unavailable | Unavailable | None listed |
| cfe5f6fd335d882bcc829a1c8a7d462a455c626e | affected | git | Unavailable | Unavailable | None listed |
| 3e078b18753669615301d946297bafd69294ad2c | affected | git | Unavailable | Unavailable | None listed |
| 5.4.180 | affected | semver | 5.4.302 | Unavailable | None listed |
| 5.10.101 | affected | semver | 5.10.247 | Unavailable | None listed |
| 5.15.24 | affected | semver | 5.15.197 | Unavailable | None listed |
| 4.14.267 | affected | semver | 4.15 | Unavailable | None listed |
| 4.19.230 | affected | semver | 4.20 | Unavailable | None listed |
| 5.16.10 | affected | semver | 5.17 | 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) |
|---|---|---|---|---|---|
| 5.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.17 | Unavailable | None listed |
| 5.4.302 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.247 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.197 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.159 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.117 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.58 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.17.8 | unaffected | semver | Unavailable | 6.17.* | None listed |
| 6.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |