CVE-2021-47504
published 2024-05-24CVE-2021-47504: In the Linux kernel, the following vulnerability has been resolved: io_uring: ensure task_work gets run as part of cancelations If we successfully cancel a…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
10.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
io_uring: ensure task_work gets run as part of cancelations
If we successfully cancel a work item but that work item needs to be
processed through task_work, then we can be sleeping uninterruptibly
in io_uring_cancel_generic() and never process it. Hence we don't
make forward progress and we end up with an uninterruptible sleep
warning.
While in there, correct a comment that should be IFF, not IIF.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.15.15-1 (bookworm) | linux 5.15.15-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 2b188cc1bb857a9d4701ae59aa7768b5124e262e < 8e12976c0c19ebc14b60046b1348c516a74c25a2 | 8e12976c0c19ebc14b60046b1348c516a74c25a2 |
| linux | linux | >= 2b188cc1bb857a9d4701ae59aa7768b5124e262e < 78a780602075d8b00c98070fa26e389b3b3efa72 | 78a780602075d8b00c98070fa26e389b3b3efa72 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 5.1 < 5.15.8 | 5.15.8 |
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
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Red Hat
kernel: io_uring: ensure task_work gets run as part of cancelations
vendor_redhat·2024-05-24·CVSS 5.5
CVE-2021-47504 [MEDIUM] CWE-99 kernel: io_uring: ensure task_work gets run as part of cancelations
kernel: io_uring: ensure task_work gets run as part of cancelations
In the Linux kernel, the following vulnerability has been resolved:
io_uring: ensure task_work gets run as part of cancelations
If we successfully cancel a work item but that work item needs to be
processed through task_work, then we can be sleeping uninterruptibly
in io_uring_cancel_generic() and never process it. Hence we don't
make forward progress and we end up with an uninterruptible sleep
warning.
While in there, correct a comment that should be IFF, not IIF.
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Out of support scope
Package: kernel-rt (Red Hat Enterprise Linux 7) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 8) - Not
Debian
CVE-2021-47504: linux - In the Linux kernel, the following vulnerability has been resolved: io_uring: e...
vendor_debian·2021·CVSS 5.5
CVE-2021-47504 [MEDIUM] CVE-2021-47504: linux - In the Linux kernel, the following vulnerability has been resolved: io_uring: e...
In the Linux kernel, the following vulnerability has been resolved: io_uring: ensure task_work gets run as part of cancelations If we successfully cancel a work item but that work item needs to be processed through task_work, then we can be sleeping uninterruptibly in io_uring_cancel_generic() and never process it. Hence we don't make forward progress and we end up with an uninterruptible sleep warning. While in there, correct a comment that should be IFF, not IIF.
Scope: local
bookworm: resolved (fixed in 5.15.15-1)
bullseye: open
forky: resolved (fixed in 5.15.15-1)
sid: resolved (fixed in 5.15.15-1)
trixie: resolved (fixed in 5.15.15-1)
OSV
CVE-2021-47504: In the Linux kernel, the following vulnerability has been resolved: io_uring: ensure task_work gets run as part of cancelations If we successfully can
osv·2024-05-24·CVSS 5.5
CVE-2021-47504 [MEDIUM] CVE-2021-47504: In the Linux kernel, the following vulnerability has been resolved: io_uring: ensure task_work gets run as part of cancelations If we successfully can
In the Linux kernel, the following vulnerability has been resolved: io_uring: ensure task_work gets run as part of cancelations If we successfully cancel a work item but that work item needs to be processed through task_work, then we can be sleeping uninterruptibly in io_uring_cancel_generic() and never process it. Hence we don't make forward progress and we end up with an uninterruptible sleep warning. While in there, correct a comment that should be IFF, not IIF.
No detection rules found.
No public exploits indexed.
2024-05-24
Published