CVE-2021-47040
published 2024-02-28CVE-2021-47040: In the Linux kernel, the following vulnerability has been resolved: io_uring: fix overflows checks in provide buffers Colin reported before possible overflow…
PriorityP336high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.26%
17.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix overflows checks in provide buffers
Colin reported before possible overflow and sign extension problems in
io_provide_buffers_prep(). As Linus pointed out previous attempt did nothing
useful, see d81269fecb8ce ("io_uring: fix provide_buffers sign extension").
Do that with help of check__overflow helpers. And fix struct
io_provide_buf::len type, as it doesn't make much sense to keep it
signed.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.10.38-1 (bookworm) | linux 5.10.38-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= efe68c1ca8f49e8c06afd74b699411bfbb8ba1ff < cbbc13b115b8f18e0a714d89f87fbdc499acfe2d | cbbc13b115b8f18e0a714d89f87fbdc499acfe2d |
| linux | linux | >= efe68c1ca8f49e8c06afd74b699411bfbb8ba1ff < 51bf90901952aaac564bbdb36b2b503050c53dd9 | 51bf90901952aaac564bbdb36b2b503050c53dd9 |
| linux | linux | >= efe68c1ca8f49e8c06afd74b699411bfbb8ba1ff < 84b8c266c4bfe9ed5128e13253c388deb74b1b03 | 84b8c266c4bfe9ed5128e13253c388deb74b1b03 |
| linux | linux | >= efe68c1ca8f49e8c06afd74b699411bfbb8ba1ff < 38134ada0ceea3e848fe993263c0ff6207fd46e7 | 38134ada0ceea3e848fe993263c0ff6207fd46e7 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 5.11 < 5.11.21 | 5.11.21 |
| linux | linux_kernel | >= 5.12 < 5.12.4 | 5.12.4 |
| linux | linux_kernel | >= 5.8 < 5.10.37 | 5.10.37 |
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_redhat7.8HIGH
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GHSA
GHSA-phvq-9637-vp75: In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix overflows checks in provide buffers
Colin reported before possible
ghsa_unreviewed·2024-02-28
CVE-2021-47040 [HIGH] CWE-120 GHSA-phvq-9637-vp75: In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix overflows checks in provide buffers
Colin reported before possible
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix overflows checks in provide buffers
Colin reported before possible overflow and sign extension problems in
io_provide_buffers_prep(). As Linus pointed out previous attempt did nothing
useful, see d81269fecb8ce ("io_uring: fix provide_buffers sign extension").
Do that with help of check__overflow helpers. And fix struct
io_provide_buf::len type, as it doesn't make much sense to keep it
signed.
OSV
CVE-2021-47040: In the Linux kernel, the following vulnerability has been resolved: io_uring: fix overflows checks in provide buffers Colin reported before possible o
osv·2024-02-28·CVSS 7.8
CVE-2021-47040 [HIGH] CVE-2021-47040: In the Linux kernel, the following vulnerability has been resolved: io_uring: fix overflows checks in provide buffers Colin reported before possible o
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix overflows checks in provide buffers Colin reported before possible overflow and sign extension problems in io_provide_buffers_prep(). As Linus pointed out previous attempt did nothing useful, see d81269fecb8ce ("io_uring: fix provide_buffers sign extension"). Do that with help of check__overflow helpers. And fix struct io_provide_buf::len type, as it doesn't make much sense to keep it signed.
Red Hat
kernel: io_uring: fix overflows checks in provide buffers
vendor_redhat·2024-02-28·CVSS 7.8
CVE-2021-47040 [HIGH] CWE-121 kernel: io_uring: fix overflows checks in provide buffers
kernel: io_uring: fix overflows checks in provide buffers
In the Linux kernel, the following vulnerability has been resolved:
io_uring: fix overflows checks in provide buffers
Colin reported before possible overflow and sign extension problems in
io_provide_buffers_prep(). As Linus pointed out previous attempt did nothing
useful, see d81269fecb8ce ("io_uring: fix provide_buffers sign extension").
Do that with help of check__overflow helpers. And fix struct
io_provide_buf::len type, as it doesn't make much sense to keep it
signed.
A flaw was found in the Linux Kernel, which may lead to overflow and sign extension problems in io_provide_buffers_prep().
Statement: Red Hat Enterprise Linux 8 and 9 are not affected by this vulnerability.
Package: kernel (Red Hat Enterprise Linux 6) - Out of
Debian
CVE-2021-47040: linux - In the Linux kernel, the following vulnerability has been resolved: io_uring: f...
vendor_debian·2021·CVSS 7.8
CVE-2021-47040 [HIGH] CVE-2021-47040: 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 overflows checks in provide buffers Colin reported before possible overflow and sign extension problems in io_provide_buffers_prep(). As Linus pointed out previous attempt did nothing useful, see d81269fecb8ce ("io_uring: fix provide_buffers sign extension"). Do that with help of check__overflow helpers. And fix struct io_provide_buf::len type, as it doesn't make much sense to keep it signed.
Scope: local
bookworm: resolved (fixed in 5.10.38-1)
bullseye: resolved (fixed in 5.10.38-1)
forky: resolved (fixed in 5.10.38-1)
sid: resolved (fixed in 5.10.38-1)
trixie: resolved (fixed in 5.10.38-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/38134ada0ceea3e848fe993263c0ff6207fd46e7https://git.kernel.org/stable/c/51bf90901952aaac564bbdb36b2b503050c53dd9https://git.kernel.org/stable/c/84b8c266c4bfe9ed5128e13253c388deb74b1b03https://git.kernel.org/stable/c/cbbc13b115b8f18e0a714d89f87fbdc499acfe2dhttps://git.kernel.org/stable/c/38134ada0ceea3e848fe993263c0ff6207fd46e7https://git.kernel.org/stable/c/51bf90901952aaac564bbdb36b2b503050c53dd9https://git.kernel.org/stable/c/84b8c266c4bfe9ed5128e13253c388deb74b1b03https://git.kernel.org/stable/c/cbbc13b115b8f18e0a714d89f87fbdc499acfe2d
2024-02-28
Published