CVE-2022-1976
published 2022-08-31CVE-2022-1976: A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests…
PriorityP341high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.23%
13.8th percentile
A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw within the kernel. This issue leads to memory corruption and possible privilege escalation.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.18.14-1 (bookworm) | linux 5.18.14-1 (bookworm) |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 5.17.3 < 5.18.6 | 5.18.6 |
| msrc | cbl2_kernel_5.15.70.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| msrc | cm1_kernel_5.10.144.1-1_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Microsoft
A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw wit
vendor_msrc·2022-08-09·CVSS 7.8
CVE-2022-1976 [HIGH] CWE-416 A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw wit
A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw within the kernel. This issue leads to memory corruption and possible privilege escalation.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post
Red Hat
kernel: incorrect in-flight accounting in io_uring leads to use-after-free
vendor_redhat·2022-06-14·CVSS 7.8
CVE-2022-1976 [HIGH] CWE-416 kernel: incorrect in-flight accounting in io_uring leads to use-after-free
kernel: incorrect in-flight accounting in io_uring leads to use-after-free
A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw within the kernel. This issue leads to memory corruption and possible privilege escalation.
A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw within the kernel. This issue leads to memory corruption and possible privilege escalation.
Mitigation: Mitigation for this issue is either not available or the currently available options does not meet the Red Hat Product Security crit
Debian
CVE-2022-1976: linux - A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw all...
vendor_debian·2022·CVSS 7.8
CVE-2022-1976 [HIGH] CVE-2022-1976: linux - A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw all...
A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw within the kernel. This issue leads to memory corruption and possible privilege escalation.
Scope: local
bookworm: resolved (fixed in 5.18.14-1)
bullseye: resolved
forky: resolved (fixed in 5.18.14-1)
sid: resolved (fixed in 5.18.14-1)
trixie: resolved (fixed in 5.18.14-1)
GHSA
GHSA-v7hc-jc7g-98g9: A flaw was found in the Linux kernel’s implementation of IO-URING
ghsa_unreviewed·2022-09-01
CVE-2022-1976 [HIGH] CWE-416 GHSA-v7hc-jc7g-98g9: A flaw was found in the Linux kernel’s implementation of IO-URING
A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw within the kernel. This issue leads to memory corruption and possible privilege escalation.
OSV
CVE-2022-1976: A flaw was found in the Linux kernel’s implementation of IO-URING
osv·2022-08-31·CVSS 7.8
CVE-2022-1976 [HIGH] CVE-2022-1976: A flaw was found in the Linux kernel’s implementation of IO-URING
A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw within the kernel. This issue leads to memory corruption and possible privilege escalation.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2022-08-31
Published