Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2024-36916
Linux Linux — blk-iocost: avoid out of bounds shift
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H N H 7.1 .0073 53.5 —
AFFECTED
Product Versions Fixed
Linux 5160a5a53c0c4ae3708959d9465ea43ad5d90542 – —
Linux 5.10 – 5.10.217
TIMELINE
May 30 Reserved by Linux
May 30 Published (CNA: Linux)
Oct 15 RESCORED — CVE-2024-36916 (Linux). CVSS 6.5 → 7.1 (NVD).
Description
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| May 30, 2024 | Reserved | Reserved by Linux |
| May 30, 2024 | Published | Published (CNA: Linux) |
| October 15, 2026 | RESCORED | RESCORED — CVE-2024-36916 (Linux). CVSS 6.5 → 7.1 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 5160a5a53c0c4ae3708959d9465ea43ad5d90542 | — |
| Linux | Linux | — | 5.10 | 5.10.217 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-36916 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.