{"id":"CVE-2023-53548","title":"net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb\n\nThe syzbot fuzzer identified a problem in the usbnet driver:\n\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWA…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 2e55cc7210fef90f88201e860d8767594974574e < a0715d04cf687a7e21f0d6ac8c1d479294a3f6f8","Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 53c250ea57cf03af41339234b9855ae284f9db91","Linux >= 2e55cc7210fef90f88201e860d8767594974574e < a05ac5d00eb7fcb2fda806caa4f56e88df6bc6bb","Linux >= 2e55cc7210fef90f88201e860d8767594974574e < ec0d0be41721aca683c5606354a58ee2c687e3f8","Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 27d0f755d649d388fcd12f01436c9a33289e14e3","Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 1bebbd9b8037a9cc75984317cb495dec4824c399","Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 0dd3e0c31bf3e933fb85faf1443833aef90b8e46","Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 5e1627cb43ddf1b24b92eb26f8d958a3f5676ccb","Linux 2.6.14"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:23:35.592043Z"},"published":"2025-10-04","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:31:14.343Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53548","references":[{"url":"https://git.kernel.org/stable/c/a0715d04cf687a7e21f0d6ac8c1d479294a3f6f8"},{"url":"https://git.kernel.org/stable/c/53c250ea57cf03af41339234b9855ae284f9db91"},{"url":"https://git.kernel.org/stable/c/a05ac5d00eb7fcb2fda806caa4f56e88df6bc6bb"},{"url":"https://git.kernel.org/stable/c/ec0d0be41721aca683c5606354a58ee2c687e3f8"},{"url":"https://git.kernel.org/stable/c/27d0f755d649d388fcd12f01436c9a33289e14e3"},{"url":"https://git.kernel.org/stable/c/1bebbd9b8037a9cc75984317cb495dec4824c399"},{"url":"https://git.kernel.org/stable/c/0dd3e0c31bf3e933fb85faf1443833aef90b8e46"},{"url":"https://git.kernel.org/stable/c/5e1627cb43ddf1b24b92eb26f8d958a3f5676ccb"}],"tags":["cve.org"],"epss":0.0016,"epssPercentile":0.05162,"ingestedAt":"2026-11-05T22:38:31.810Z","slug":"CVE-2023-53548","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb\n\nThe syzbot fuzzer identified a problem in the usbnet driver:\n\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 0 PID: 754 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504\nModules linked in:\nCPU: 0 PID: 754 Comm: kworker/0:2 Not tainted 6.4.0-rc7-syzkaller-00014-g692b7dc87ca6 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023\nWorkqueue: mld mld_ifc_work\nRIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504\nCode: 7c 24 18 e8 2c b4 5b fb 48 8b 7c 24 18 e8 42 07 f0 fe 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 a0 c9 fc 8a e8 5a 6f 23 fb <0f> 0b e9 58 f8 ff ff e8 fe b3 5b fb 48 81 c5 c0 05 00 00 e9 84 f7\nRSP: 0018:ffffc9000463f568 EFLAGS: 00010086\nRAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000\nRDX: ffff88801eb28000 RSI: ffffffff814c03b7 RDI: 0000000000000001\nRBP: ffff8881443b7190 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000003\nR13: ffff88802a77cb18 R14: 0000000000000003 R15: ffff888018262500\nFS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000556a99c15a18 CR3: 0000000028c71000 CR4: 0000000000350ef0\nCall Trace:\n <TASK>\n usbnet_start_xmit+0xfe5/0x2190 drivers/net/usb/usbnet.c:1453\n __netdev_start_xmit include/linux/netdevice.h:4918 [inline]\n netdev_start_xmit include/linux/netdevice.h:4932 [inline]\n xmit_one net/core/dev.c:3578 [inline]\n dev_hard_start_xmit+0x187/0x700 net/core/dev.c:3594\n...\n\nThis bug is caused by the fact that usbnet trusts the bulk endpoint\naddresses its probe routine receives in the driver_info structure, and\nit does not check to see that these endpoints actually exist and have\nthe expected type and directions.\n\nThe fix is simply to add such a check.\n\n## Affected\n\n- `Linux >= 2e55cc7210fef90f88201e860d8767594974574e < a0715d04cf687a7e21f0d6ac8c1d479294a3f6f8`\n- `Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 53c250ea57cf03af41339234b9855ae284f9db91`\n- `Linux >= 2e55cc7210fef90f88201e860d8767594974574e < a05ac5d00eb7fcb2fda806caa4f56e88df6bc6bb`\n- `Linux >= 2e55cc7210fef90f88201e860d8767594974574e < ec0d0be41721aca683c5606354a58ee2c687e3f8`\n- `Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 27d0f755d649d388fcd12f01436c9a33289e14e3`\n- `Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 1bebbd9b8037a9cc75984317cb495dec4824c399`\n- `Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 0dd3e0c31bf3e933fb85faf1443833aef90b8e46`\n- `Linux >= 2e55cc7210fef90f88201e860d8767594974574e < 5e1627cb43ddf1b24b92eb26f8d958a3f5676ccb`\n- `Linux 2.6.14`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}