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GHSA-H234-F9WP-JPMR

Vulnerability from github – Published: 2024-03-03 00:30 – Updated: 2024-12-11 18:30
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

net: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg

syzbot reported the following uninit-value access issue:

===================================================== BUG: KMSAN: uninit-value in smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:975 [inline] BUG: KMSAN: uninit-value in smsc75xx_bind+0x5c9/0x11e0 drivers/net/usb/smsc75xx.c:1482 CPU: 0 PID: 8696 Comm: kworker/0:3 Not tainted 5.8.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:118 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:121 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215 smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:975 [inline] smsc75xx_bind+0x5c9/0x11e0 drivers/net/usb/smsc75xx.c:1482 usbnet_probe+0x1152/0x3f90 drivers/net/usb/usbnet.c:1737 usb_probe_interface+0xece/0x1550 drivers/usb/core/driver.c:374 really_probe+0xf20/0x20b0 drivers/base/dd.c:529 driver_probe_device+0x293/0x390 drivers/base/dd.c:701 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:807 bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431 __device_attach+0x4e2/0x7f0 drivers/base/dd.c:873 device_initial_probe+0x4a/0x60 drivers/base/dd.c:920 bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491 device_add+0x3b0e/0x40d0 drivers/base/core.c:2680 usb_set_configuration+0x380f/0x3f10 drivers/usb/core/message.c:2032 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:241 usb_probe_device+0x311/0x490 drivers/usb/core/driver.c:272 really_probe+0xf20/0x20b0 drivers/base/dd.c:529 driver_probe_device+0x293/0x390 drivers/base/dd.c:701 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:807 bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431 __device_attach+0x4e2/0x7f0 drivers/base/dd.c:873 device_initial_probe+0x4a/0x60 drivers/base/dd.c:920 bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491 device_add+0x3b0e/0x40d0 drivers/base/core.c:2680 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2554 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] port_event drivers/usb/core/hub.c:5494 [inline] hub_event+0x5e7b/0x8a70 drivers/usb/core/hub.c:5576 process_one_work+0x1688/0x2140 kernel/workqueue.c:2269 worker_thread+0x10bc/0x2730 kernel/workqueue.c:2415 kthread+0x551/0x590 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293

Local variable ----buf.i87@smsc75xx_bind created at: __smsc75xx_read_reg drivers/net/usb/smsc75xx.c:83 [inline] smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:968 [inline] smsc75xx_bind+0x485/0x11e0 drivers/net/usb/smsc75xx.c:1482 __smsc75xx_read_reg drivers/net/usb/smsc75xx.c:83 [inline] smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:968 [inline] smsc75xx_bind+0x485/0x11e0 drivers/net/usb/smsc75xx.c:1482

This issue is caused because usbnet_read_cmd() reads less bytes than requested (zero byte in the reproducer). In this case, 'buf' is not properly filled.

This patch fixes the issue by returning -ENODATA if usbnet_read_cmd() reads less bytes than requested.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2023-52528"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-02T22:15:48Z",
    "severity": "MODERATE"
  },
  "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, \u0027buf\u0027 is not properly filled.\n\nThis patch fixes the issue by returning -ENODATA if usbnet_read_cmd() reads\nless bytes than requested.",
  "id": "GHSA-h234-f9wp-jpmr",
  "modified": "2024-12-11T18:30:36Z",
  "published": "2024-03-03T00:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52528"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a36d9e2995c8c3c3f179aab1215a69cff06cbed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30bc4d7aebe33904b0f2d3aad4b4a9c6029ad0c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/310f1c92f65ad905b7e81fe14de82d979ebbd825"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e0af6eec1789fd11934164a7f4dbcad979855a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4931e80da9463b03bfe42be54a9a19f213b0f76d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ffc5018020fe646795a8dc1203224b8f776dc09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cda10784a176d7192f08ecb518f777a4e9575812"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9c65989920f7c28775ec4e0c11b483910fb67b8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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