{ "schema_version": "1.6.1", "id": "RPI-CVE-2023-52528", "modified": "2026-10-07T17:22:01Z", "upstream": [ "CVE-2023-52528" ], "published": "2024-03-02T21:53:07Z", "summary": "net: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg", "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg\n\nsyzbot reported the following uninit-value access issue:\n\n=====================================================\nBUG: KMSAN: uninit-value in smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:975 [inline]\nBUG: KMSAN: uninit-value in smsc75xx_bind+0x5c9/0x11e0 drivers/net/usb/smsc75xx.c:1482\nCPU: 0 PID: 8696 Comm: kworker/0:3 Not tainted 5.8.0-rc5-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nWorkqueue: usb_hub_wq hub_event\nCall Trace:\n __dump_stack lib/dump_stack.c:77 [inline]\n dump_stack+0x21c/0x280 lib/dump_stack.c:118\n kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:121\n __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215\n smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:975 [inline]\n smsc75xx_bind+0x5c9/0x11e0 drivers/net/usb/smsc75xx.c:1482\n usbnet_probe+0x1152/0x3f90 drivers/net/usb/usbnet.c:1737\n usb_probe_interface+0xece/0x1550 drivers/usb/core/driver.c:374\n really_probe+0xf20/0x20b0 drivers/base/dd.c:529\n driver_probe_device+0x293/0x390 drivers/base/dd.c:701\n __device_attach_driver+0x63f/0x830 drivers/base/dd.c:807\n bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431\n __device_attach+0x4e2/0x7f0 drivers/base/dd.c:873\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:920\n bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491\n device_add+0x3b0e/0x40d0 drivers/base/core.c:2680\n usb_set_configuration+0x380f/0x3f10 drivers/usb/core/message.c:2032\n usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:241\n usb_probe_device+0x311/0x490 drivers/usb/core/driver.c:272\n really_probe+0xf20/0x20b0 drivers/base/dd.c:529\n driver_probe_device+0x293/0x390 drivers/base/dd.c:701\n __device_attach_driver+0x63f/0x830 drivers/base/dd.c:807\n bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431\n __device_attach+0x4e2/0x7f0 drivers/base/dd.c:873\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:920\n bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491\n device_add+0x3b0e/0x40d0 drivers/base/core.c:2680\n usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2554\n hub_port_connect drivers/usb/core/hub.c:5208 [inline]\n hub_port_connect_change drivers/usb/core/hub.c:5348 [inline]\n port_event drivers/usb/core/hub.c:5494 [inline]\n hub_event+0x5e7b/0x8a70 drivers/usb/core/hub.c:5576\n process_one_work+0x1688/0x2140 kernel/workqueue.c:2269\n worker_thread+0x10bc/0x2730 kernel/workqueue.c:2415\n kthread+0x551/0x590 kernel/kthread.c:292\n ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293\n\nLocal variable ----buf.i87@smsc75xx_bind created at:\n __smsc75xx_read_reg drivers/net/usb/smsc75xx.c:83 [inline]\n smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:968 [inline]\n smsc75xx_bind+0x485/0x11e0 drivers/net/usb/smsc75xx.c:1482\n __smsc75xx_read_reg drivers/net/usb/smsc75xx.c:83 [inline]\n smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:968 [inline]\n smsc75xx_bind+0x485/0x11e0 drivers/net/usb/smsc75xx.c:1482\n\nThis issue is caused because usbnet_read_cmd() reads less bytes than requested\n(zero byte in the reproducer). In this case, 'buf' is not properly filled.\n\nThis patch fixes the issue by returning -ENODATA if usbnet_read_cmd() reads\nless bytes than requested.", "affected": [ { "package": { "ecosystem": "Raspberry Pi OS:12", "name": "linux" }, "versions": [ "1:6.1.21-1+rpt1", "1:6.1.47-1+rpt2", "1:6.1.47-1+rpt4", "1:6.1.54-1+rpt2" ], "ecosystem_specific": { "binaries": [ { "binary_name": "linux-image-6.1.0-rpi1-rpi-v6", "binary_version": "1:6.1.21-1+rpt1" }, { "binary_name": "linux-image-6.1.0-rpi1-rpi-v7", "binary_version": "1:6.1.21-1+rpt1" }, { "binary_name": "linux-image-6.1.0-rpi1-rpi-v7l", "binary_version": "1:6.1.21-1+rpt1" }, { "binary_name": "linux-image-6.1.0-rpi1-rpi-v8", "binary_version": "1:6.1.21-1+rpt1" }, { "binary_name": "linux-image-6.1.0-rpi2-rpi-v6", "binary_version": "1:6.1.47-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi2-rpi-v7", "binary_version": "1:6.1.47-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi2-rpi-v7l", "binary_version": "1:6.1.47-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi2-rpi-v8", "binary_version": "1:6.1.47-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-2712", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-v6", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-v7", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-v8", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi4-rpi-2712", "binary_version": "1:6.1.54-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi4-rpi-v6", "binary_version": "1:6.1.54-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi4-rpi-v7", "binary_version": "1:6.1.54-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi4-rpi-v7l", "binary_version": "1:6.1.54-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi4-rpi-v8", "binary_version": "1:6.1.54-1+rpt2" } ] }, "database_specific": { "per_version": { "1:6.1.21-1+rpt1": { "linux_commit": "0afb5e98488aed7017b9bf321b575d0177feb7ed", "upstream_version": "6.1.21", "assessment": "commit ancestry (strak rule)", "upstream_fixed": "6.1.57" }, "1:6.1.47-1+rpt2": { "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e", "upstream_version": "6.1.47", "assessment": "commit ancestry (strak rule)", "upstream_fixed": "6.1.57" }, "1:6.1.47-1+rpt4": { "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e", "upstream_version": "6.1.47", "assessment": "commit ancestry (strak rule)", "upstream_fixed": "6.1.57", "compiled_filter": false }, "1:6.1.54-1+rpt2": { "linux_commit": "2906f7abdc03d4a92b6b0e2e0c87ea2a9dffe8f7", "upstream_version": "6.1.54", "assessment": "commit ancestry (strak rule)", "upstream_fixed": "6.1.57" } } } } ], "references": [ { "type": "ADVISORY", "url": "https://www.cve.org/CVERecord?id=CVE-2023-52528" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/3e0af6eec1789fd11934164a7f4dbcad979855a4" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/2a36d9e2995c8c3c3f179aab1215a69cff06cbed" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/310f1c92f65ad905b7e81fe14de82d979ebbd825" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/30bc4d7aebe33904b0f2d3aad4b4a9c6029ad0c5" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/cda10784a176d7192f08ecb518f777a4e9575812" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/9ffc5018020fe646795a8dc1203224b8f776dc09" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/4931e80da9463b03bfe42be54a9a19f213b0f76d" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/e9c65989920f7c28775ec4e0c11b483910fb67b8" } ], "database_specific": { "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git", "upstream_modified": "2026-05-12T04:54:46Z" } }