{
  "threat_severity" : "Low",
  "public_date" : "2024-03-02T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: net: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg",
    "id" : "2267789",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2267789"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.4",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-252",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nnet: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg\nsyzbot reported the following uninit-value access issue:\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]\ndump_stack+0x21c/0x280 lib/dump_stack.c:118\nkmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:121\n__msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215\nsmsc75xx_wait_ready drivers/net/usb/smsc75xx.c:975 [inline]\nsmsc75xx_bind+0x5c9/0x11e0 drivers/net/usb/smsc75xx.c:1482\nusbnet_probe+0x1152/0x3f90 drivers/net/usb/usbnet.c:1737\nusb_probe_interface+0xece/0x1550 drivers/usb/core/driver.c:374\nreally_probe+0xf20/0x20b0 drivers/base/dd.c:529\ndriver_probe_device+0x293/0x390 drivers/base/dd.c:701\n__device_attach_driver+0x63f/0x830 drivers/base/dd.c:807\nbus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431\n__device_attach+0x4e2/0x7f0 drivers/base/dd.c:873\ndevice_initial_probe+0x4a/0x60 drivers/base/dd.c:920\nbus_probe_device+0x177/0x3d0 drivers/base/bus.c:491\ndevice_add+0x3b0e/0x40d0 drivers/base/core.c:2680\nusb_set_configuration+0x380f/0x3f10 drivers/usb/core/message.c:2032\nusb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:241\nusb_probe_device+0x311/0x490 drivers/usb/core/driver.c:272\nreally_probe+0xf20/0x20b0 drivers/base/dd.c:529\ndriver_probe_device+0x293/0x390 drivers/base/dd.c:701\n__device_attach_driver+0x63f/0x830 drivers/base/dd.c:807\nbus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431\n__device_attach+0x4e2/0x7f0 drivers/base/dd.c:873\ndevice_initial_probe+0x4a/0x60 drivers/base/dd.c:920\nbus_probe_device+0x177/0x3d0 drivers/base/bus.c:491\ndevice_add+0x3b0e/0x40d0 drivers/base/core.c:2680\nusb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2554\nhub_port_connect drivers/usb/core/hub.c:5208 [inline]\nhub_port_connect_change drivers/usb/core/hub.c:5348 [inline]\nport_event drivers/usb/core/hub.c:5494 [inline]\nhub_event+0x5e7b/0x8a70 drivers/usb/core/hub.c:5576\nprocess_one_work+0x1688/0x2140 kernel/workqueue.c:2269\nworker_thread+0x10bc/0x2730 kernel/workqueue.c:2415\nkthread+0x551/0x590 kernel/kthread.c:292\nret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293\nLocal variable ----buf.i87@smsc75xx_bind created at:\n__smsc75xx_read_reg drivers/net/usb/smsc75xx.c:83 [inline]\nsmsc75xx_wait_ready drivers/net/usb/smsc75xx.c:968 [inline]\nsmsc75xx_bind+0x485/0x11e0 drivers/net/usb/smsc75xx.c:1482\n__smsc75xx_read_reg drivers/net/usb/smsc75xx.c:83 [inline]\nsmsc75xx_wait_ready drivers/net/usb/smsc75xx.c:968 [inline]\nsmsc75xx_bind+0x485/0x11e0 drivers/net/usb/smsc75xx.c:1482\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.\nThis patch fixes the issue by returning -ENODATA if usbnet_read_cmd() reads\nless bytes than requested.", "In the Linux kernel, the following vulnerability has been resolved:\nnet: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg\nThe Linux kernel CVE team has assigned CVE-2023-52528 to this issue.\nUpstream advisory:\nhttps://lore.kernel.org/linux-cve-announce/2024030254-CVE-2023-52528-c33b@gregkh/T/#u" ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2024-06-05T00:00:00Z",
    "advisory" : "RHSA-2024:3627",
    "cpe" : "cpe:/a:redhat:enterprise_linux:8::nfv",
    "package" : "kernel-rt-0:4.18.0-553.5.1.rt7.346.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2024-06-05T00:00:00Z",
    "advisory" : "RHSA-2024:3618",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "kernel-0:4.18.0-553.5.1.el8_10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-11-12T00:00:00Z",
    "advisory" : "RHSA-2024:9315",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-503.11.1.el9_5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-11-12T00:00:00Z",
    "advisory" : "RHSA-2024:9315",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-503.11.1.el9_5"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9.4 Extended Update Support",
    "release_date" : "2025-04-30T00:00:00Z",
    "advisory" : "RHSA-2025:4342",
    "cpe" : "cpe:/a:redhat:rhel_eus:9.4",
    "package" : "kernel-0:5.14.0-427.66.1.el9_4"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-52528\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52528\nhttps://lore.kernel.org/linux-cve-announce/2024030254-CVE-2023-52528-c33b@gregkh/T/#u" ],
  "name" : "CVE-2023-52528",
  "csaw" : false
}