{"id":"CVE-2023-54306","title":"net: tls: avoid hanging tasks on the tx_lock","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tls: avoid hanging tasks on the tx_lock\n\nsyzbot sent a hung task report and Eric explains that adversarial\nreceiver may keep RWIN at 0 for a long time, so we are n…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < bde541a57b4204d0a800afbbd3d1c06c9cdb133f","Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < 7123a4337bf73132bbfb5437e4dc83ba864a9a1e","Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < be5d5d0637fd88c18ee76024bdb22649a1de00d6","Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < 1f800f6aae57d2d8f63d32fff383017cbc11cf65","Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < ccf1ccdc5926907befbe880b562b2a4b5f44c087","Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < f3221361dc85d4de22586ce8441ec2c67b454f5d","Linux c8d6817345f4ba228d07380e571676405e112872","Linux >= 5.3.11 < 5.4","Linux 5.4"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-15T21:40:10.978521Z"},"published":"2025-12-30","updated":"2026-10-15","sourceUpdated":"2026-10-15T21:41:44.334Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-54306","references":[{"url":"https://git.kernel.org/stable/c/bde541a57b4204d0a800afbbd3d1c06c9cdb133f"},{"url":"https://git.kernel.org/stable/c/7123a4337bf73132bbfb5437e4dc83ba864a9a1e"},{"url":"https://git.kernel.org/stable/c/be5d5d0637fd88c18ee76024bdb22649a1de00d6"},{"url":"https://git.kernel.org/stable/c/1f800f6aae57d2d8f63d32fff383017cbc11cf65"},{"url":"https://git.kernel.org/stable/c/ccf1ccdc5926907befbe880b562b2a4b5f44c087"},{"url":"https://git.kernel.org/stable/c/f3221361dc85d4de22586ce8441ec2c67b454f5d"}],"tags":["cve.org"],"epss":0.00599,"epssPercentile":0.47556,"ingestedAt":"2026-10-15T22:48:25.438Z","slug":"CVE-2023-54306","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: tls: avoid hanging tasks on the tx_lock\n\nsyzbot sent a hung task report and Eric explains that adversarial\nreceiver may keep RWIN at 0 for a long time, so we are not guaranteed\nto make forward progress. Thread which took tx_lock and went to sleep\nmay not release tx_lock for hours. Use interruptible sleep where\npossible and reschedule the work if it can't take the lock.\n\nTesting: existing selftest passes\n\n## Affected\n\n- `Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < bde541a57b4204d0a800afbbd3d1c06c9cdb133f`\n- `Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < 7123a4337bf73132bbfb5437e4dc83ba864a9a1e`\n- `Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < be5d5d0637fd88c18ee76024bdb22649a1de00d6`\n- `Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < 1f800f6aae57d2d8f63d32fff383017cbc11cf65`\n- `Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < ccf1ccdc5926907befbe880b562b2a4b5f44c087`\n- `Linux >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5 < f3221361dc85d4de22586ce8441ec2c67b454f5d`\n- `Linux c8d6817345f4ba228d07380e571676405e112872`\n- `Linux >= 5.3.11 < 5.4`\n- `Linux 5.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}