CVE - CVE-2024-26748

CVE-ID
CVE-2024-26748	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/1e204a8e9eb514e22a6567fb340ebb47df3f3a48 URL:https://git.kernel.org/stable/c/1e204a8e9eb514e22a6567fb340ebb47df3f3a48 MISC:https://git.kernel.org/stable/c/3a2a909942b5335b7ea66366d84261b3ed5f89c8 URL:https://git.kernel.org/stable/c/3a2a909942b5335b7ea66366d84261b3ed5f89c8 MISC:https://git.kernel.org/stable/c/5fd9e45f1ebcd57181358af28506e8a661a260b3 URL:https://git.kernel.org/stable/c/5fd9e45f1ebcd57181358af28506e8a661a260b3 MISC:https://git.kernel.org/stable/c/70e8038813f9d3e72df966748ebbc40efe466019 URL:https://git.kernel.org/stable/c/70e8038813f9d3e72df966748ebbc40efe466019 MISC:https://git.kernel.org/stable/c/92d20406a3d4ff3e8be667c79209dc9ed31df5b3 URL:https://git.kernel.org/stable/c/92d20406a3d4ff3e8be667c79209dc9ed31df5b3 MISC:https://git.kernel.org/stable/c/9a52b694b066f299d8b9800854a8503457a8b64c URL:https://git.kernel.org/stable/c/9a52b694b066f299d8b9800854a8503457a8b64c MISC:https://git.kernel.org/stable/c/aad6132ae6e4809e375431f8defd1521985e44e7 URL:https://git.kernel.org/stable/c/aad6132ae6e4809e375431f8defd1521985e44e7
Assigning CNA
kernel.org
Date Record Created
20240219	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240219)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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