CVE-2022-49791
published 2025-05-01CVE-2022-49791: In the Linux kernel, the following vulnerability has been resolved: io_uring: fix multishot accept request leaks Having REQ_F_POLLED set doesn't guarantee that…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.16%
5.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix multishot accept request leaks
Having REQ_F_POLLED set doesn't guarantee that the request is
executed as a multishot from the polling path. Fortunately for us, if
the code thinks it's multishot issue when it's not, it can only ask to
skip completion so leaking the request. Use issue_flags to mark
multipoll issues.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.10-1 (bookworm) | linux 6.0.10-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 390ed29b5e425ba00da2b6113b74a14949f71b02 < 0e4626de856ef8f25ecd9c716e76d4f95ce95639 | 0e4626de856ef8f25ecd9c716e76d4f95ce95639 |
| linux | linux | >= 390ed29b5e425ba00da2b6113b74a14949f71b02 < 91482864768a874c4290ef93b84a78f4f1dac51b | 91482864768a874c4290ef93b84a78f4f1dac51b |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.0.10-1 | 6.0.10-1 |
| linux | linux_kernel | >= 0 < 6.0.10-1 | 6.0.10-1 |
| linux | linux_kernel | >= 0 < 6.0.10-1 | 6.0.10-1 |
| linux | linux_kernel | >= 5.19 < 6.0.10 | 6.0.10 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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.
OSV
CVE-2022-49791: In the Linux kernel, the following vulnerability has been resolved: io_uring: fix multishot accept request leaks Having REQ_F_POLLED set doesn't guara
osv·2025-05-01·CVSS 5.5
CVE-2022-49791 [MEDIUM] CVE-2022-49791: In the Linux kernel, the following vulnerability has been resolved: io_uring: fix multishot accept request leaks Having REQ_F_POLLED set doesn't guara
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix multishot accept request leaks Having REQ_F_POLLED set doesn't guarantee that the request is executed as a multishot from the polling path. Fortunately for us, if the code thinks it's multishot issue when it's not, it can only ask to skip completion so leaking the request. Use issue_flags to mark multipoll issues.
GHSA
GHSA-qrxq-fh5p-2v4x: In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix multishot accept request leaks
Having REQ_F_POLLED set doesn't gua
ghsa_unreviewed·2025-05-01
CVE-2022-49791 [MEDIUM] CWE-401 GHSA-qrxq-fh5p-2v4x: In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix multishot accept request leaks
Having REQ_F_POLLED set doesn't gua
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix multishot accept request leaks
Having REQ_F_POLLED set doesn't guarantee that the request is
executed as a multishot from the polling path. Fortunately for us, if
the code thinks it's multishot issue when it's not, it can only ask to
skip completion so leaking the request. Use issue_flags to mark
multipoll issues.
Red Hat
kernel: io_uring: fix multishot accept request leaks
vendor_redhat·2025-05-01·CVSS 5.5
CVE-2022-49791 [MEDIUM] kernel: io_uring: fix multishot accept request leaks
kernel: io_uring: fix multishot accept request leaks
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix multishot accept request leaks
Having REQ_F_POLLED set doesn't guarantee that the request is
executed as a multishot from the polling path. Fortunately for us, if
the code thinks it's multishot issue when it's not, it can only ask to
skip completion so leaking the request. Use issue_flags to mark
multipoll issues.
Statement: A memory leak in io_uring's multishot accept implementation could result in resource exhaustion if abused repeatedly. This issue does not allow privilege escalation or data leakage, but may impact system stability over time.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - N
Debian
CVE-2022-49791: linux - In the Linux kernel, the following vulnerability has been resolved: io_uring: f...
vendor_debian·2022·CVSS 5.5
CVE-2022-49791 [MEDIUM] CVE-2022-49791: linux - In the Linux kernel, the following vulnerability has been resolved: io_uring: f...
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix multishot accept request leaks Having REQ_F_POLLED set doesn't guarantee that the request is executed as a multishot from the polling path. Fortunately for us, if the code thinks it's multishot issue when it's not, it can only ask to skip completion so leaking the request. Use issue_flags to mark multipoll issues.
Scope: local
bookworm: resolved (fixed in 6.0.10-1)
bullseye: resolved
forky: resolved (fixed in 6.0.10-1)
sid: resolved (fixed in 6.0.10-1)
trixie: resolved (fixed in 6.0.10-1)
No detection rules found.
No public exploits indexed.
2025-05-01
Published