Answer in brief
CVE-2024-26748 records a High severity (CVSS 7.8) vulnerability in usb: cdns3: fix memory double free when handle zero packet. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7733f6c32e36ff9d7adadf40001039bf219b1cbe <aad6132ae6e4809e375431f8defd1521985e44e7 || >=7733f6c32e36ff9d7adadf40001039bf219b1cbe <1e204a8e9eb514e22a6567fb340ebb47df3f3a48 || >=7733f6c32e36ff9d7adadf40001039bf219b1cbe <3a2a909942b5335b7ea66366d84261b3ed5f89c8 || >=7733f6c32e36ff9d7adadf40001039bf219b1cbe <9a52b694b066f299d8b9800854a8503457a8b64c || >=7733f6c32e36ff9d7adadf40001039bf219b1cbe <70e8038813f9d3e72df966748ebbc40efe466019 || >=7733f6c32e36ff9d7adadf40001039bf219b1cbe <92d20406a3d4ff3e8be667c79209dc9ed31df5b3 || >=7733f6c32e36ff9d7adadf40001039bf219b1cbe <5fd9e45f1ebcd57181358af28506e8a661a260b3 | aad6132ae6e4809e375431f8defd1521985e44e7, 1e204a8e9eb514e22a6567fb340ebb47df3f3a48, 3a2a909942b5335b7ea66366d84261b3ed5f89c8, 9a52b694b066f299d8b9800854a8503457a8b64c, 70e8038813f9d3e72df966748ebbc40efe466019, 92d20406a3d4ff3e8be667c79209dc9ed31df5b3, 5fd9e45f1ebcd57181358af28506e8a661a260b3 |
| Linux/Linuxgeneric | 5.4 | Not reported |
Published upstream
Apr 3, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: fix memory double free when handle zero packet 829 if (request->complete) { 830 spin_unlock(&priv_dev->lock); 831 usb_gadget_giveback_request(&priv_ep->endpoint, 832 request); 833 spin_lock(&priv_dev->lock); 834 } 835 836 if (request->buf == priv_dev->zlp_buf) 837 cdns3_gadget_ep_free_request(&priv_ep->endpoint, request); Driver append an additional zero packet request when queue a packet, which length mod max packet size is 0. When transfer complete, run to line 831, usb_gadget_giveback_request() will free this requestion. 836 condition is true, so cdns3_gadget_ep_free_request() free this request again. Log: [ 1920.140696][ T150] BUG: KFENCE: use-after-free read in cdns3_gadget_giveback+0x134/0x2c0 [cdns3] [ 1920.140696][ T150] [ 1920.151837][ T150] Use-after-free read at 0x000000003d1cd10b (in kfence-#36): [ 1920.159082][ T150] cdns3_gadget_giveback+0x134/0x2c0 [cdns3] [ 1920.164988][ T150] cdns3_transfer_completed+0x438/0x5f8 [cdns3] Add check at line 829, skip call usb_gadget_giveback_request() if it is additional zero length packet request. Needn't call usb_gadget_giveback_request() because it is allocated in this driver.
Quoted source text, attributed separately from HOL analysis.