Bug 2148458 (CVE-2022-3635)
| Summary: | CVE-2022-3635 kernel: use after in tst_timer in drivers/atm/idt77252.c | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Rohit Keshri <rkeshri> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED NOTABUG | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, adscvr, airlied, alciregi, bhu, bskeggs, chwhite, crwood, ddepaula, debarbos, dhoward, dvlasenk, ezulian, fhrbata, hdegoede, hkrzesin, hpa, jarod, jarodwilson, jburrell, jfaracco, jferlan, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lleshchi, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, tyberry, vkumar, walters, williams |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel 6.1 rc1 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-12-08 18:15:56 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: | 2148459 | ||
There was no shipped kernel version that was seen affected by this problem. This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-3635 |
A vulnerability has been found in Linux Kernel in tst_timer in drivers/atm/idt77252.c of the component IPsec. The manipulation leads to use after free. There are use-after-free bugs caused by tst_timer. The root cause is that there are no functions to stop tst_timer in idt77252_exit(). One of the possible race conditions is shown below: (thread 1) | (thread 2) | idt77252_init_one | init_card | fill_tst | mod_timer(&card->tst_timer, ...) idt77252_exit | (wait a time) | tst_timer | | ... kfree(card) // FREE | | card->soft_tst[e] // USE The idt77252_dev is deallocated in idt77252_exit() and used in timer handler. Reference: https://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git/commit/?id=3f4093e2bf4673f218c0bf17d8362337c400e77b