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Issue metadata

Status: WontFix
Owner:
Closed: Apr 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Chrome
Pri: 3
Type: Bug-Security



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CVE-2018-7757 CrOS: Vulnerability reported in Linux kernel

Project Member Reported by vomit.go...@appspot.gserviceaccount.com, Mar 29 2018

Issue description

VOMIT (go/vomit) has received an external vulnerability report for the Linux kernel. 

Advisory: CVE-2018-7757
  Details: http://vomit.googleplex.com/advisory?id=CVE/CVE-2018-7757
  CVSS severity score: 2.1/10.0
  Description:

Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file.



This bug was filed by http://go/vomit
Please contact us at vomit-team@google.com if you need any assistance.

 

Comment 1 by zsm@chromium.org, Mar 29 2018

Cc: groeck@chromium.org
Owner: zsm@chromium.org
Status: Assigned (was: Untriaged)

Comment 2 by groeck@chromium.org, Mar 30 2018

Cc: wonderfly@google.com
Labels: Security_Severity-Low Security_Impact-None Pri-3
Upstream commit 4a491b1ab11ca0 ("scsi: libsas: fix memory leak in sas_smp_get_phy_events()"). Only systems with CONFIG_SCSI_SAS_LIBSAS enabled are affected. This configuration option is not enabled in ChromeOS or Lakitu images.
The fix is not in any stable releases. I would suggest to mark the bug as WontFix.

Cc: xueweiz@google.com

Comment 4 by zsm@chromium.org, Apr 3 2018

Status: WontFix (was: Assigned)
Thanks groeck@, marking this bug as WontFix as per #2.

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