{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-21718", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.753Z", "datePublished": "2025-02-27T02:07:27.971Z", "dateUpdated": "2026-05-11T21:05:04.908Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:05:04.908Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: rose: fix timer races against user threads\n\nRose timers only acquire the socket spinlock, without\nchecking if the socket is owned by one user thread.\n\nAdd a check and rearm the timers if needed.\n\nBUG: KASAN: slab-use-after-free in rose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174\nRead of size 2 at addr ffff88802f09b82a by task swapper/0/0\n\nCPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc5-syzkaller-00172-gd1bf27c4e176 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nCall Trace:\n <IRQ>\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:489\n kasan_report+0x143/0x180 mm/kasan/report.c:602\n rose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174\n call_timer_fn+0x187/0x650 kernel/time/timer.c:1793\n expire_timers kernel/time/timer.c:1844 [inline]\n __run_timers kernel/time/timer.c:2418 [inline]\n __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430\n run_timer_base kernel/time/timer.c:2439 [inline]\n run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449\n handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561\n __do_softirq kernel/softirq.c:595 [inline]\n invoke_softirq kernel/softirq.c:435 [inline]\n __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662\n irq_exit_rcu+0x9/0x30 kernel/softirq.c:678\n instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]\n sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049\n </IRQ>"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/rose/rose_timer.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "52f5aff33ca73b2c2fa93f40a3de308012e63cf4", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "0d5bca3be27bfcf8f980f2fed49b6cbb7dafe4a1", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1409b45d4690308c502c6caf22f01c3c205b4717", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "f55c88e3ca5939a6a8a329024aed8f3d98eea8e4", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "51c128ba038cf1b79d605cbee325919b45ab95a5", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1992fb261c90e9827cf5dc3115d89bb0853252c9", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "58051a284ac18a3bb815aac6289a679903ddcc3f", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "5de7665e0a0746b5ad7943554b34db8f8614a196", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/rose/rose_timer.c"], "versions": [{"version": "2.6.12", "status": "affected"}, {"version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.291", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.235", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.179", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.129", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.76", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.13", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.2", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": 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"versionEndExcluding": "6.13.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.14"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/52f5aff33ca73b2c2fa93f40a3de308012e63cf4"}, {"url": "https://git.kernel.org/stable/c/0d5bca3be27bfcf8f980f2fed49b6cbb7dafe4a1"}, {"url": "https://git.kernel.org/stable/c/1409b45d4690308c502c6caf22f01c3c205b4717"}, {"url": "https://git.kernel.org/stable/c/f55c88e3ca5939a6a8a329024aed8f3d98eea8e4"}, {"url": "https://git.kernel.org/stable/c/51c128ba038cf1b79d605cbee325919b45ab95a5"}, {"url": "https://git.kernel.org/stable/c/1992fb261c90e9827cf5dc3115d89bb0853252c9"}, {"url": "https://git.kernel.org/stable/c/58051a284ac18a3bb815aac6289a679903ddcc3f"}, {"url": "https://git.kernel.org/stable/c/5de7665e0a0746b5ad7943554b34db8f8614a196"}], "title": "net: rose: fix timer races against user threads", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}, {"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:36:13.575Z"}}]}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7CFA9ED9-656E-463E-A661-B2C4369D63EB", "versionEndExcluding": "6.1.129", "versionStartIncluding": "2.6.12", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A6D70701-9CB6-4222-A957-00A419878993", "versionEndExcluding": "6.6.76", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2897389C-A8C3-4D69-90F2-E701B3D66373", "versionEndExcluding": "6.12.13", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6D4116B1-1BFD-4F23-BA84-169CC05FC5A3", "versionEndExcluding": "6.13.2", "versionStartIncluding": "6.13", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: rose: fix timer races against user threads\n\nRose timers only acquire the socket spinlock, without\nchecking if the socket is owned by one user thread.\n\nAdd a check and rearm the timers if needed.\n\nBUG: KASAN: slab-use-after-free in rose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174\nRead of size 2 at addr ffff88802f09b82a by task swapper/0/0\n\nCPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc5-syzkaller-00172-gd1bf27c4e176 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nCall Trace:\n <IRQ>\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:489\n kasan_report+0x143/0x180 mm/kasan/report.c:602\n rose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174\n call_timer_fn+0x187/0x650 kernel/time/timer.c:1793\n expire_timers kernel/time/timer.c:1844 [inline]\n __run_timers kernel/time/timer.c:2418 [inline]\n __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430\n run_timer_base kernel/time/timer.c:2439 [inline]\n run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449\n handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561\n __do_softirq kernel/softirq.c:595 [inline]\n invoke_softirq kernel/softirq.c:435 [inline]\n __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662\n irq_exit_rcu+0x9/0x30 kernel/softirq.c:678\n instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]\n sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049\n </IRQ>"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: rose: se corrige la ejecuci\u00f3n de temporizadores contra subprocesos de usuario Los temporizadores de Rose solo adquieren el bloqueo de giro del socket, sin verificar si el socket es propiedad de un subproceso de usuario. Agregue una verificaci\u00f3n y vuelva a armar los temporizadores si es necesario. ERROR: KASAN: slab-use-after-free en rose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174 Lectura de tama\u00f1o 2 en la direcci\u00f3n ffff88802f09b82a por la tarea swapper/0/0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 No contaminado 6.13.0-rc5-syzkaller-00172-gd1bf27c4e176 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 13/09/2024 Rastreo de llamadas: __dump_stack lib/dump_stack.c:94 [en l\u00ednea] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [en l\u00ednea] print_report+0x169/0x550 mm/kasan/report.c:489 kasan_report+0x143/0x180 mm/kasan/report.c:602 rose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174 call_timer_fn+0x187/0x650 kernel/time/timer.c:1793 expire_timers kernel/time/timer.c:1844 [en l\u00ednea] __run_timers kernel/time/timer.c:2418 [en l\u00ednea] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [en l\u00ednea] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [en l\u00ednea] invoke_softirq kernel/softirq.c:435 [en l\u00ednea] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [en l\u00ednea] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049"}], "id": "CVE-2025-21718", "lastModified": "2025-11-03T20:17:11.733", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-27T02:15:15.473", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0d5bca3be27bfcf8f980f2fed49b6cbb7dafe4a1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1409b45d4690308c502c6caf22f01c3c205b4717"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1992fb261c90e9827cf5dc3115d89bb0853252c9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/51c128ba038cf1b79d605cbee325919b45ab95a5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/52f5aff33ca73b2c2fa93f40a3de308012e63cf4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/58051a284ac18a3bb815aac6289a679903ddcc3f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5de7665e0a0746b5ad7943554b34db8f8614a196"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f55c88e3ca5939a6a8a329024aed8f3d98eea8e4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}, {"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: rose: fix timer races against user threads", "id": "2348527", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348527"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: rose: fix timer races against user threads\nRose timers only acquire the socket spinlock, without\nchecking if the socket is owned by one user thread.\nAdd a check and rearm the timers if needed.\nBUG: KASAN: slab-use-after-free in rose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174\nRead of size 2 at addr ffff88802f09b82a by task swapper/0/0\nCPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc5-syzkaller-00172-gd1bf27c4e176 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nCall Trace:\n<IRQ>\n__dump_stack lib/dump_stack.c:94 [inline]\ndump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\nprint_address_description mm/kasan/report.c:378 [inline]\nprint_report+0x169/0x550 mm/kasan/report.c:489\nkasan_report+0x143/0x180 mm/kasan/report.c:602\nrose_timer_expiry+0x31d/0x360 net/rose/rose_timer.c:174\ncall_timer_fn+0x187/0x650 kernel/time/timer.c:1793\nexpire_timers kernel/time/timer.c:1844 [inline]\n__run_timers kernel/time/timer.c:2418 [inline]\n__run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430\nrun_timer_base kernel/time/timer.c:2439 [inline]\nrun_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449\nhandle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561\n__do_softirq kernel/softirq.c:595 [inline]\ninvoke_softirq kernel/softirq.c:435 [inline]\n__irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662\nirq_exit_rcu+0x9/0x30 kernel/softirq.c:678\ninstr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]\nsysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049\n</IRQ>"], "name": "CVE-2025-21718", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-21718\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-21718\nhttps://lore.kernel.org/linux-cve-announce/2025022646-CVE-2025-21718-d976@gregkh/T"], "threat_severity": "Important"}

{}