In the Linux kernel, the following vulnerability has been resolved: blk-iocost: avoid out of bounds shift UBSAN catches undefined behavior in blk-iocost, where sometimes iocg->delay is shifted right by a number that is too large, resulting in undefined behavior on some architectures. [ 186.556576] ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in block/blk-iocost.c:1366:23 shift exponent 64 is too large for 64-bit type 'u64' (aka 'unsigned long long') CPU: 16 PID: 0 Comm: swapper/16 Tainted: G S E N 6.9.0-0_fbk700_debug_rc2_kbuilder_0_gc85af715cac0 #1 Hardware name: Quanta Twin Lakes MP/Twin Lakes Passive MP, BIOS F09_3A23 12/08/2020 Call Trace: <IRQ> dump_stack_lvl+0x8f/0xe0 __ubsan_handle_shift_out_of_bounds+0x22c/0x280 iocg_kick_delay+0x30b/0x310 ioc_timer_fn+0x2fb/0x1f80 __run_timer_base+0x1b6/0x250 ... Avoid that undefined behavior by simply taking the "delay = 0" branch if the shift is too large. I am not sure what the symptoms of an undefined value delay will be, but I suspect it could be more than a little annoying to debug.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/488dc6808cb8369685f18cee81e88e7052ac153b cve-icon cve-icon
https://git.kernel.org/stable/c/62accf6c1d7b433752cb3591bba8967b7a801ad5 cve-icon cve-icon
https://git.kernel.org/stable/c/844fc023e9f14a4fb1de5ae1eaefafd6d69c5fa1 cve-icon cve-icon
https://git.kernel.org/stable/c/beaa51b36012fad5a4d3c18b88a617aea7a9b96d cve-icon cve-icon
https://git.kernel.org/stable/c/ce0e99cae00e3131872936713b7f55eefd53ab86 cve-icon cve-icon
https://git.kernel.org/stable/c/f6add0a6f78dc6360b822ca4b6f9f2f14174c8ca cve-icon cve-icon
https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html cve-icon
https://lore.kernel.org/linux-cve-announce/2024053038-CVE-2024-36916-ebf8@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-36916 cve-icon
https://security.netapp.com/advisory/ntap-20240905-0006/ cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-36916 cve-icon
History

Fri, 22 Nov 2024 12:00:00 +0000

Type Values Removed Values Added
References

Tue, 05 Nov 2024 10:45:00 +0000

Type Values Removed Values Added
References

Mon, 04 Nov 2024 21:15:00 +0000

Type Values Removed Values Added
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

 ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L'}

Thu, 05 Sep 2024 08:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-05-30T15:29:12.745Z

Updated: 2024-12-19T09:02:01.495Z

Reserved: 2024-05-30T15:25:07.068Z

Link: CVE-2024-36916

cve-icon Vulnrichment

Updated: 2024-09-05T08:03:32.685Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-30T16:15:14.963

Modified: 2024-11-21T09:22:48.607

Link: CVE-2024-36916

cve-icon Redhat

Severity : Low

Publid Date: 2024-05-30T00:00:00Z

Links: CVE-2024-36916 - Bugzilla