CVE-2023-53051: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: dm crypt: add cond_resched() to dmcrypt_write() The loop in dmcrypt_write may be running for unbounded amount of time, thus we need cond_resched() in it. This commit fixes the following warning: [ 3391.153255][ C12] watchdog: BUG: soft lockup - CPU#12 stuck for 23s! [dmcrypt_write/2:2897] ... [ 3391.387210][ C12] Call trace: [ 3391.390338][ C12] blk_attempt_bio_merge.part.6+0x38/0x158 [ 3391.395970][ C12] blk_attempt_plug_merge+0xc0/0x1b0 [ 3391.401085][ C12] blk_mq_submit_bio+0x398/0x550 [ 3391.405856][ C12] submit_bio_noacct+0x308/0x380 [ 3391.410630][ C12] dmcrypt_write+0x1e4/0x208 [dm_crypt] [ 3391.416005][ C12] kthread+0x130/0x138 [ 3391.419911][ C12] ret_from_fork+0x10/0x18

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-835 CWE-835

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.0 — 4.14.312
linux	linux_kernel	4.15 — 4.19.280
linux	linux_kernel	4.20 — 5.4.240
linux	linux_kernel	5.5 — 5.10.177
linux	linux_kernel	5.11 — 5.15.105
linux	linux_kernel	5.16 — 6.1.22
linux	linux_kernel	6.2 — 6.2.9
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/2c743db1193bf0e76c73d71ede08bd9b96e6c31d https://git.kernel.org/stable/c/66ff37993dd7e9954b6446237fe2453b380ce40d https://git.kernel.org/stable/c/7b9f8efb5fc888dd938d2964e705b8e00f1dc0f6 https://git.kernel.org/stable/c/885c28ceae7dab2b18c2cc0eb95f1f82b1f629d1 https://git.kernel.org/stable/c/e87cd83f70504f1cd2e428966f353c007d6d2d7f https://git.kernel.org/stable/c/eb485b7404a281d974bd445ddc5b0b8d5958f371 https://git.kernel.org/stable/c/f0eb61b493dbbc32529fbd0d2e945b71b0e47306 https://git.kernel.org/stable/c/fb294b1c0ba982144ca467a75e7d01ff26304e2b

Frequently Asked Questions

What is CVE-2023-53051? +

In the Linux kernel, the following vulnerability has been resolved: dm crypt: add cond_resched() to dmcrypt_write() The loop in dmcrypt_write may be running for unbounded amount of time, thus we need cond_resched() in it. This commit fixes the following warning: [ 3391.153255][ C12] watchdog: BUG: soft lockup - CPU#12 stuck for 23s! [dmcrypt_write/2:2897] ... [ 3391.387210][ C12] Call trace: [ 3391.390338][ C12] blk_attempt_bio_merge.part.6+0x38/0x158 [ 3391.395970][ C12] blk_attempt_plug_merge+0xc0/0x1b0 [ 3391.401085][ C12] blk_mq_submit_bio+0x398/0x550 [ 3391.405856][ C12] submit_bio_noacct+0x308/0x380 [ 3391.410630][ C12] dmcrypt_write+0x1e4/0x208 [dm_crypt] [ 3391.416005][ C12] kthread+0x130/0x138 [ 3391.419911][ C12] ret_from_fork+0x10/0x18 It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-53051? +

CVE-2023-53051 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-53051? +

CVE-2023-53051 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-53051? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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