Not yet scoredPublished Dec 8, 2025

CVE-2023-53820loop: loop_set_status_from_info() check before assignment

Updated under an hour ago (Oct 27, 2026, 7:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: loop: loop_set_status_from_info() check before assignment In loop_set_status_from_info(), lo->lo_offset and lo->lo_sizelimit should be checked before reassignment, because if an overflow error occurs, the original correct value will be changed to the wrong value, and it will not be changed back. More, the original patch did not solve the problem, the value was set and ioctl returned an error, but the subsequent io used the value in the loop driver, which still caused an alarm: loop_handle_cmd do_req_filebacked loff_t pos = ((loff_t) blk_rq_pos(rq) << 9) + lo->lo_offset; lo_rw_aio cmd->iocb.ki_pos = pos

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: May 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	2035c770bfdbcc82bd52e05871a7c82db9529e0f builds before 6bdf4e6dfb60cbb6121ccf027d97ed2ec97c0bcb; from a217715338fd48f72114725aa7a40e484a781ca7 before 832580af82ace363205039a8e7c4ef04552ccc1a; 13b2856037a651ba3ab4a8b25ecab3e791926da3 builds before 2ea7077748e5d7cc64f1c31342c802fe66ea7426; from b40877b8562c5720d0a7fce20729f56b75a3dede before 861021710bba9dfa0749a3c209a6c1773208b1f1; from 6858933131d0dadac071c4d33335a9ea4b8e76cf before c79a924ed6afac1708dfd370ba66bcf6a852ced6; 0455bef69028c65065f16bb04635591b2374249b builds before 3e7d0968203d668af6036b9f9199c7b62c8a3581; from c490a0b5a4f36da3918181a8acdc6991d967c5f3 before 4be26d553a3f1d4f54f25353d1496c562002126d; from c490a0b5a4f36da3918181a8acdc6991d967c5f3 before 258809bf22bf71d53247856f374f2b1d055f2fd4; and 11 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/6bdf4e6dfb60cbb6121ccf027d97ed2ec97c0bcb
https://git.kernel.org/stable/c/832580af82ace363205039a8e7c4ef04552ccc1a
https://git.kernel.org/stable/c/2ea7077748e5d7cc64f1c31342c802fe66ea7426
https://git.kernel.org/stable/c/861021710bba9dfa0749a3c209a6c1773208b1f1
https://git.kernel.org/stable/c/c79a924ed6afac1708dfd370ba66bcf6a852ced6
https://git.kernel.org/stable/c/3e7d0968203d668af6036b9f9199c7b62c8a3581
https://git.kernel.org/stable/c/4be26d553a3f1d4f54f25353d1496c562002126d
https://git.kernel.org/stable/c/258809bf22bf71d53247856f374f2b1d055f2fd4
https://git.kernel.org/stable/c/9f6ad5d533d1c71e51bdd06a5712c4fbc8768dfa

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.