{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53587", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53587", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-10-04T15:44:02.679Z", "updatedAt": "2026-10-15T21:41:31.118Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "ring-buffer: Sync IRQ works before buffer destruction", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Sync IRQ works before buffer destruction\n\nIf something was written to the buffer just before destruction,\nit may be possible (maybe not in a real system, but it did\nhappen in ARCH=um with time-travel) to destroy the ringbuffer\nbefore the IRQ work ran, leading this KASAN report (or a crash\nwithout KASAN):\n\n BUG: KASAN: slab-use-after-free in irq_work_run_list+0x11a/0x13a\n Read of size 8 at addr 000000006d640a48 by task swapper/0\n\n CPU: 0 PID: 0 Comm: swapper Tainted: G W O 6.3.0-rc1 #7\n Stack:\n 60c4f20f 0c203d48 41b58ab3 60f224fc\n 600477fa 60f35687 60c4f20f 601273dd\n 00000008 6101eb00 6101eab0 615be548\n Call Trace:\n [<60047a58>] show_stack+0x25e/0x282\n [<60c609e0>] dump_stack_lvl+0x96/0xfd\n [<60c50d4c>] print_report+0x1a7/0x5a8\n [<603078d3>] kasan_report+0xc1/0xe9\n [<60308950>] __asan_report_load8_noabort+0x1b/0x1d\n [<60232844>] irq_work_run_list+0x11a/0x13a\n [<602328b4>] irq_work_tick+0x24/0x34\n [<6017f9dc>] update_process_times+0x162/0x196\n [<6019f335>] tick_sched_handle+0x1a4/0x1c3\n [<6019fd9e>] tick_sched_timer+0x79/0x10c\n [<601812b9>] __hrtimer_run_queues.constprop.0+0x425/0x695\n [<60182913>] hrtimer_interrupt+0x16c/0x2c4\n [<600486a3>] um_timer+0x164/0x183\n [...]\n\n Allocated by task 411:\n save_stack_trace+0x99/0xb5\n stack_trace_save+0x81/0x9b\n kasan_save_stack+0x2d/0x54\n kasan_set_track+0x34/0x3e\n kasan_save_alloc_info+0x25/0x28\n ____kasan_kmalloc+0x8b/0x97\n __kasan_kmalloc+0x10/0x12\n __kmalloc+0xb2/0xe8\n load_elf_phdrs+0xee/0x182\n [...]\n\n The buggy address belongs to the object at 000000006d640800\n which belongs to the cache kmalloc-1k of size 1024\n The buggy address is located 584 bytes inside of\n freed 1024-byte region [000000006d640800, 000000006d640c00)\n\nAdd the appropriate irq_work_sync() so the work finishes before\nthe buffers are destroyed.\n\nPrior to the commit in the Fixes tag below, there was only a\nsingle global IRQ work, so this issue didn't exist.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "15693458c4bc0693fd63a50d60f35b628fcf4e29", "status": "affected", "versionType": "git", "lessThan": "372c5ee537b8366b64b691ba29e9335525e1655e" }, { "version": "15693458c4bc0693fd63a50d60f35b628fcf4e29", "status": "affected", "versionType": "git", "lessThan": "2702b67f59d455072a08dc40312f9b090d4dec04" }, { "version": "15693458c4bc0693fd63a50d60f35b628fcf4e29", "status": "affected", "versionType": "git", "lessThan": "2399b1fda025e939b6fb1ac94505bcf718534e65" }, { "version": "15693458c4bc0693fd63a50d60f35b628fcf4e29", "status": "affected", "versionType": "git", "lessThan": "1c99f65d6af2a454bfd5207b4f6a97c8474a1191" }, { "version": "15693458c4bc0693fd63a50d60f35b628fcf4e29", "status": "affected", "versionType": "git", "lessThan": "c63741e872fcfb10e153517750f7908f0c00f60d" }, { "version": "15693458c4bc0693fd63a50d60f35b628fcf4e29", "status": "affected", "versionType": "git", "lessThan": "d9834abd8b24d1fe8092859e436fe1e0fd467c61" }, { "version": "15693458c4bc0693fd63a50d60f35b628fcf4e29", "status": "affected", "versionType": "git", "lessThan": "fc6858b7f8e1221f62ce8c6ff8a13a349c32cd76" }, { "version": "15693458c4bc0693fd63a50d60f35b628fcf4e29", "status": "affected", "versionType": "git", "lessThan": "0a65165bd24ee9231191597b7c232376fcd70cdb" }, { "version": "15693458c4bc0693fd63a50d60f35b628fcf4e29", "status": "affected", "versionType": "git", "lessThan": "675751bb20634f981498c7d66161584080cc061e" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.10", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.10" }, { "version": "4.14.315", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.283", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.243", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.180", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.111", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.28", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2.15", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.3.*" }, { "version": "6.4", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }