Bug 1565455 (CVE-2017-18257)

Summary: CVE-2017-18257 kernel: Inifinite loop caused by integer overflow in fs/f2fs/data.c:__get_data_block() allows for denial of service
Product: [Other] Security Response Reporter: Sam Fowler <sfowler>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: airlied, aquini, bhu, blc, bskeggs, dhoward, esammons, ewk, fhrbata, hdegoede, hkrzesin, hwkernel-mgr, iboverma, ichavero, itamar, jarodwilson, jforbes, jglisse, jkacur, john.j5live, jonathan, josef, jross, jwboyer, kernel-maint, kernel-mgr, labbott, lgoncalv, linville, lwang, matt, mchehab, mcressma, mguzik, mjg59, mlangsdo, nmurray, plougher, rt-maint, rvrbovsk, skozina, slawomir, steved, vdronov, williams
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: kernel 4.11 Doc Type: If docs needed, set a value
Doc Text:
The Linux kernel was found to be vulnerable to an infinite loop cause by an integer overflow in the fs/f2fs/data.c:__get_data_block() function. A local attacker could exploit this to cause a denial of service.
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-04-11 09:54:28 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1565456    

Description Sam Fowler 2018-04-10 04:32:27 UTC
The Linux kernel was found to be vulnerable to an infinite loop cause by an integer overflow in the fs/f2fs/data.c:__get_data_block() function. A local attacker could exploit this to cause a denial of service.

An upstream patch:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86e33075ed1909d8002745b56ecf73b833db143