Bug 463478
| Summary: | RHEL5.3: ecryptfs memory corruption | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Eric Sandeen <esandeen> |
| Component: | kernel | Assignee: | Red Hat Kernel Manager <kernel-mgr> |
| Status: | CLOSED ERRATA | QA Contact: | Martin Jenner <mjenner> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 5.3 | CC: | syeghiay, thenzl |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2009-01-20 20:15:21 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: | |||
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux maintenance release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Update release for currently deployed products. This request is not yet committed for inclusion in an Update release. in kernel-2.6.18-118.el5 You can download this test kernel from http://people.redhat.com/dzickus/el5 An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2009-0225.html |
Tomas Henzl pointed out this bug in the ecryptfs mount path: > >> + options_len = (strlen(options) + 1); > >> + if ((opts_tmp = opts_orig = kmalloc(options_len, GFP_KERNEL)) == NULL) { > >> + rc = -ENOMEM; > >> + goto out; > >> + } > >> + memcpy(opts_orig, options, options_len); > >> + opts_orig[options_len] = '\0'; > >> > Sorry for being so late, but wouldn't be here better > > + opts_orig[options_len - 1] = '\0'; where it writes 1 byte past the allocated memory. This constitutes memory corruption on the ecryptfs mount path, and should be fixed before RHEL5.3 releases. Thanks, -Eric