5.5

CVE-2022-50498

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

eth: alx: take rtnl_lock on resume

Zbynek reports that alx trips an rtnl assertion on resume:

 RTNL: assertion failed at net/core/dev.c (2891)
 RIP: 0010:netif_set_real_num_tx_queues+0x1ac/0x1c0
 Call Trace:
  <TASK>
  __alx_open+0x230/0x570 [alx]
  alx_resume+0x54/0x80 [alx]
  ? pci_legacy_resume+0x80/0x80
  dpm_run_callback+0x4a/0x150
  device_resume+0x8b/0x190
  async_resume+0x19/0x30
  async_run_entry_fn+0x30/0x130
  process_one_work+0x1e5/0x3b0

indeed the driver does not hold rtnl_lock during its internal close
and re-open functions during suspend/resume. Note that this is not
a huge bug as the driver implements its own locking, and does not
implement changing the number of queues, but we need to silence
the splat.
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Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 5.14 < 5.15.75
LinuxLinux Kernel Version >= 5.16 < 5.19.17
LinuxLinux Kernel Version >= 6.0 < 6.0.3
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.051
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.