CVE-2026-74456
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)
can: peak_usb: peak_usb_start(): fix double free of transfer buffer on URB submit error
In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: peak_usb_start(): fix double free of transfer buffer on URB submit error In peak_usb_start(), each RX URB transfer buffer is allocated with kmalloc() and the URB is flagged URB_FREE_BUFFER so that the final usb_free_urb() also frees the transfer buffer. If usb_submit_urb() fails, the error path frees the buffer explicitly with kfree(buf) and then calls usb_free_urb(urb). Because URB_FREE_BUFFER is set, usb_free_urb() -> urb_destroy() frees the same buffer a second time, a double free of the transfer buffer. BUG: KASAN: double-free in usb_free_urb.part.0+0x91/0xb0 Free of addr ffff8881069ccb80 by task trigger.sh/285 Call Trace: kfree+0x113/0x3c0 usb_free_urb.part.0+0x91/0xb0 Drop the redundant kfree(buf); usb_free_urb() already releases the transfer buffer. This mirrors commit 03819abbeb11 ("net: usb: lan78xx: Fix double free issue with interrupt buffer allocation").
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) |
|---|---|---|---|---|---|
| bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d | affected | git | 914c3b8fa175acf8476ad31cf04e308638e3578e | Unavailable | None listed |
| bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d | affected | git | 5f2fa5840c34d3a558c57855781be75e03bef752 | Unavailable | None listed |
| bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d | affected | git | b9088d581fff971a7eb1628f8dcc30df6cfef4dc | Unavailable | None listed |
| bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d | affected | git | 525640b93d3e5f82f4ebea4730f4e0cf799522ba | Unavailable | None listed |
| bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d | affected | git | 4bb3325075138dd5346b71589a959878b564dc0b | Unavailable | None listed |
| bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d | affected | git | 92d0de80ca2223b9c7da78020155b6cb27824cc0 | Unavailable | None listed |
| bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d | affected | git | dfb17bf04a764462000f11258a7c06aa92d1f261 | Unavailable | None listed |
| bb4785551f64e18b2c8bb15a3bd2b22f5ebf624d | affected | git | 9b3d5a6d952c38bbcf07f903cbeadefdb56b9bc9 | 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) |
|---|---|---|---|---|---|
| 3.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.4 | Unavailable | None listed |
| 5.10.265 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.216 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.151 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.103 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.44 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.8 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |