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TI-2023-30104 Aliases CVE-2023-53820GHSA-3f7g-86g8-7vgv

loop: loop_set_status_from_info() check before assignment

Priority LOW 23Published · Updated

Key facts

Attack vector
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Privileges required
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User interaction
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Attack complexity
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Impact type
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Confidentiality · integrity · availability
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Fix status
Partial Red Hat: 1 without a fix

No CVSS vector from any source. Fix status from CNA and Red Hat.

Summary

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

Why it matters now

EPSS 0.00276 20th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.19.312, 5.4.274, 5.10.173 +7Red Hat: 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.19.257 to before 4.19.312; 5.4.212 to before 5.4.274; 5.10.140 to before 5.10.173; 5.15.64 to before 5.15.100; 4.9.327 to before 4.10; 4.14.292 to before 4.15; 5.19.6 to before 5.204.19.312, 5.4.274, 5.10.173, 5.15.100, 4.10, 4.15, 5.20Patch availableCNA
LinuxLinux6.0 and later4.19.312, 5.4.274, 5.10.173, 5.15.100, 6.1.18, 6.2.5, 6.3Patch availableCNA
  • Linux VendorLinux Affected 4.19.257 to before 4.19.312; 5.4.212 to before 5.4.274; 5.10.140 to before 5.10.173; 5.15.64 to before 5.15.100; 4.9.327 to before 4.10; 4.14.292 to before 4.15; 5.19.6 to before 5.20 Fixed in 4.19.312, 5.4.274, 5.10.173, 5.15.100, 4.10, 4.15, 5.20 Patch available CNA
  • Linux VendorLinux Affected 6.0 and later Fixed in 4.19.312, 5.4.274, 5.10.173, 5.15.100, 6.1.18, 6.2.5, 6.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*——Linux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions — — ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.19.312, 5.4.274, 5.10.173, 5.15.100, 4.10, 4.15, 5.20
  • Fix · CNA Linux (Linux) Fixed in 4.19.312, 5.4.274, 5.10.173, 5.15.100, 6.1.18, 6.2.5, 6.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Not affected: 4 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-53820
  2. 2026-10-03 Alias added: GHSA-3f7g-86g8-7vgv

References

Other 9

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
See all 21727 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences