CVE-2022-49560

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-49560", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.591Z", "datePublished": "2025-02-26T02:14:05.548Z", "dateUpdated": "2026-08-05T08:55:44.020Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:55:44.020Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: check if cluster num is valid\n\nSyzbot reported slab-out-of-bounds read in exfat_clear_bitmap.\nThis was triggered by reproducer calling truncute with size 0,\nwhich causes the following trace:\n\nBUG: KASAN: slab-out-of-bounds in exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174\nRead of size 8 at addr ffff888115aa9508 by task syz-executor251/365\n\nCall Trace:\n __dump_stack lib/dump_stack.c:77 [inline]\n dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118\n print_address_description+0x81/0x3c0 mm/kasan/report.c:233\n __kasan_report mm/kasan/report.c:419 [inline]\n kasan_report+0x1a4/0x1f0 mm/kasan/report.c:436\n __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309\n exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174\n exfat_free_cluster+0x25a/0x4a0 fs/exfat/fatent.c:181\n __exfat_truncate+0x99e/0xe00 fs/exfat/file.c:217\n exfat_truncate+0x11b/0x4f0 fs/exfat/file.c:243\n exfat_setattr+0xa03/0xd40 fs/exfat/file.c:339\n notify_change+0xb76/0xe10 fs/attr.c:336\n do_truncate+0x1ea/0x2d0 fs/open.c:65\n\nMove the is_valid_cluster() helper from fatent.c to a common\nheader to make it reusable in other *.c files. And add is_valid_cluster()\nto validate if cluster number is within valid range in exfat_clear_bitmap()\nand exfat_set_bitmap()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The bug is reached by mounting a crafted exFAT image (loop/USB/SD) and then truncating or unlinking a file whose stream entry describes an invalid cluster extent, flowing through setattr/evict into exfat_free_cluster\u2192exfat_clear_bitmap. This is a local block-device filesystem path, not a network protocol handler.\nAC:L - The attacker fully controls on-disk start_clu, ALLOC_NO_FAT_CHAIN flags, and file size, so truncate-to-zero or unlink deterministically walks cluster numbers past sbi->num_clusters into exfat_clear_bitmap with no race or other condition outside their control.\nPR:N - exFAT lacks FS_USERNS_MOUNT; the attacker needs no account on the victim host\u2014supplying a malicious exFAT volume (USB stick, SD card, disk image) is enough, and CAP_SYS_ADMIN belongs to the victim/automount path that mounts it.\nUI:R - Exploitation requires a user or automount/storage path to mount the attacker-supplied exFAT volume and then truncate or delete a crafted file so __exfat_truncate frees the invalid cluster chain.\nS:U - The slab OOB access and subsequent bit-clear write occur in host kernel memory within the same security authority as the mounting kernel; there is no VM escape, IOMMU bypass, or other cross-boundary scope change.\nC:H - KASAN reports a slab-out-of-bounds read of the vol_amap[i] pointer when the cluster index exceeds map_sectors, disclosing adjacent heap contents; per guidance unbounded/OOB reads of kernel memory are High confidentiality impact.\nI:H - After the OOB pointer load, clear_bit_le (and the analogous set_bit_le in exfat_set_bitmap) writes through that pointer, yielding an out-of-bounds/arbitrary bit-clear write primitive classed as High integrity impact.\nA:H - The demonstrated KASAN slab-out-of-bounds fault in exfat_clear_bitmap during truncate can oops/panic the kernel, fully denying availability."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/exfat/balloc.c", "fs/exfat/exfat_fs.h", "fs/exfat/fatent.c"], "versions": [{"version": "1e49a94cf707204b66a3fb242f2814712c941f52", "lessThan": "82f723b8a5adf497f9e34c702a30ca7298615654", "status": "affected", "versionType": "git"}, {"version": "1e49a94cf707204b66a3fb242f2814712c941f52", "lessThan": "c504167adc3248095a905fa0700a9693897cb5ed", "status": "affected", "versionType": "git"}, {"version": "1e49a94cf707204b66a3fb242f2814712c941f52", "lessThan": "7c58b14b6f9cde9f69e7fa053ab73f6e013a7131", "status": "affected", "versionType": "git"}, {"version": "1e49a94cf707204b66a3fb242f2814712c941f52", "lessThan": "2193286402df2d9c53294f7a858d5e6fd7346e08", "status": "affected", "versionType": "git"}, {"version": "1e49a94cf707204b66a3fb242f2814712c941f52", "lessThan": "64ba4b15e5c045f8b746c6da5fc9be9a6b00b61d", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/exfat/balloc.c", "fs/exfat/exfat_fs.h", "fs/exfat/fatent.c"], "versions": [{"version": "5.7", "status": "affected"}, {"version": "0", "lessThan": "5.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.120", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.45", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.13", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18.2", "lessThanOrEqual": "5.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.10.120"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.15.45"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.17.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.18.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.7", "versionEndExcluding": "5.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/82f723b8a5adf497f9e34c702a30ca7298615654"}, {"url": "https://git.kernel.org/stable/c/c504167adc3248095a905fa0700a9693897cb5ed"}, {"url": "https://git.kernel.org/stable/c/7c58b14b6f9cde9f69e7fa053ab73f6e013a7131"}, {"url": "https://git.kernel.org/stable/c/2193286402df2d9c53294f7a858d5e6fd7346e08"}, {"url": "https://git.kernel.org/stable/c/64ba4b15e5c045f8b746c6da5fc9be9a6b00b61d"}], "title": "exfat: check if cluster num is valid", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2022-49560", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-10-01T19:37:16.623841Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:46:39.057Z"}}]}}

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And add is_valid_cluster()\nto validate if cluster number is within valid range in exfat_clear_bitmap()\nand exfat_set_bitmap()."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.120", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.45", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.17.13", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.18.2", "versionStartIncluding": "5.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.19", "versionStartIncluding": "5.7"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:02:18.642Z"}}}, "cveMetadata": {"cveId": "CVE-2022-49560", "state": "PUBLISHED", "dateUpdated": "2026-05-11T19:02:18.642Z", "dateReserved": "2025-02-26T02:08:31.591Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-02-26T02:14:05.548Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/exfat/balloc.c", "fs/exfat/exfat_fs.h", "fs/exfat/fatent.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "82f723b8a5adf497f9e34c702a30ca7298615654", "status": "affected", "version": "1e49a94cf707204b66a3fb242f2814712c941f52", "versionType": "git"}, {"lessThan": "c504167adc3248095a905fa0700a9693897cb5ed", "status": "affected", "version": "1e49a94cf707204b66a3fb242f2814712c941f52", "versionType": "git"}, {"lessThan": "7c58b14b6f9cde9f69e7fa053ab73f6e013a7131", "status": "affected", "version": "1e49a94cf707204b66a3fb242f2814712c941f52", "versionType": "git"}, {"lessThan": "2193286402df2d9c53294f7a858d5e6fd7346e08", "status": "affected", "version": "1e49a94cf707204b66a3fb242f2814712c941f52", "versionType": "git"}, {"lessThan": "64ba4b15e5c045f8b746c6da5fc9be9a6b00b61d", "status": "affected", "version": "1e49a94cf707204b66a3fb242f2814712c941f52", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/exfat/balloc.c", "fs/exfat/exfat_fs.h", "fs/exfat/fatent.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.7"}, {"lessThan": "5.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.120", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.45", "versionType": "semver"}, {"lessThanOrEqual": "5.17.*", "status": "unaffected", "version": "5.17.13", "versionType": "semver"}, {"lessThanOrEqual": "5.18.*", "status": "unaffected", "version": "5.18.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.19", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "78702CD4-AEE5-45F6-90C7-1EB25AF09D08", "versionEndExcluding": "5.10.120", "versionStartIncluding": "5.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "08D699AD-F4CE-4BDD-A97E-4997299C7712", "versionEndExcluding": "5.15.45", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "192FC54B-5367-49D6-B410-0285F14665B1", "versionEndExcluding": "5.17.13", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9FF255A1-64F4-4E31-AF44-C92FB8773BA2", "versionEndExcluding": "5.18.2", "versionStartIncluding": "5.18", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: check if cluster num is valid\n\nSyzbot reported slab-out-of-bounds read in exfat_clear_bitmap.\nThis was triggered by reproducer calling truncute with size 0,\nwhich causes the following trace:\n\nBUG: KASAN: slab-out-of-bounds in exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174\nRead of size 8 at addr ffff888115aa9508 by task syz-executor251/365\n\nCall Trace:\n __dump_stack lib/dump_stack.c:77 [inline]\n dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118\n print_address_description+0x81/0x3c0 mm/kasan/report.c:233\n __kasan_report mm/kasan/report.c:419 [inline]\n kasan_report+0x1a4/0x1f0 mm/kasan/report.c:436\n __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309\n exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174\n exfat_free_cluster+0x25a/0x4a0 fs/exfat/fatent.c:181\n __exfat_truncate+0x99e/0xe00 fs/exfat/file.c:217\n exfat_truncate+0x11b/0x4f0 fs/exfat/file.c:243\n exfat_setattr+0xa03/0xd40 fs/exfat/file.c:339\n notify_change+0xb76/0xe10 fs/attr.c:336\n do_truncate+0x1ea/0x2d0 fs/open.c:65\n\nMove the is_valid_cluster() helper from fatent.c to a common\nheader to make it reusable in other *.c files. And add is_valid_cluster()\nto validate if cluster number is within valid range in exfat_clear_bitmap()\nand exfat_set_bitmap()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: exfat: comprobar si el n\u00famero de cl\u00faster es v\u00e1lido Syzbot inform\u00f3 una lectura de slab fuera de los l\u00edmites en exfat_clear_bitmap. Esto fue provocado por el reproductor que llama a truncute con tama\u00f1o 0, lo que provoca el siguiente seguimiento: ERROR: KASAN: slab-out-of-bounds in exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174 Read of size 8 at addr ffff888115aa9508 by task syz-executor251/365 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118 print_address_description+0x81/0x3c0 mm/kasan/report.c:233 __kasan_report mm/kasan/report.c:419 [inline] kasan_report+0x1a4/0x1f0 mm/kasan/report.c:436 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309 exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174 exfat_free_cluster+0x25a/0x4a0 fs/exfat/fatent.c:181 __exfat_truncate+0x99e/0xe00 fs/exfat/file.c:217 exfat_truncate+0x11b/0x4f0 fs/exfat/file.c:243 exfat_setattr+0xa03/0xd40 fs/exfat/file.c:339 notify_change+0xb76/0xe10 fs/attr.c:336 do_truncate+0x1ea/0x2d0 fs/open.c:65 Move the is_valid_cluster() helper from fatent.c to a common header to make it reusable in other *.c files. And add is_valid_cluster() to validate if cluster number is within valid range in exfat_clear_bitmap() and exfat_set_bitmap(). "}], "id": "CVE-2022-49560", "lastModified": "2026-08-04T10:17:51.580", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49560", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:37:16.623841Z", "version": "2.0.3"}}]}, "published": "2025-02-26T07:01:31.780", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2193286402df2d9c53294f7a858d5e6fd7346e08"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/64ba4b15e5c045f8b746c6da5fc9be9a6b00b61d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7c58b14b6f9cde9f69e7fa053ab73f6e013a7131"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/82f723b8a5adf497f9e34c702a30ca7298615654"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c504167adc3248095a905fa0700a9693897cb5ed"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: exfat: check if cluster num is valid", "id": "2347980", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347980"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nexfat: check if cluster num is valid\nSyzbot reported slab-out-of-bounds read in exfat_clear_bitmap.\nThis was triggered by reproducer calling truncute with size 0,\nwhich causes the following trace:\nBUG: KASAN: slab-out-of-bounds in exfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174\nRead of size 8 at addr ffff888115aa9508 by task syz-executor251/365\nCall Trace:\n__dump_stack lib/dump_stack.c:77 [inline]\ndump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118\nprint_address_description+0x81/0x3c0 mm/kasan/report.c:233\n__kasan_report mm/kasan/report.c:419 [inline]\nkasan_report+0x1a4/0x1f0 mm/kasan/report.c:436\n__asan_report_load8_noabort+0x14/0x20 mm/kasan/report_generic.c:309\nexfat_clear_bitmap+0x147/0x490 fs/exfat/balloc.c:174\nexfat_free_cluster+0x25a/0x4a0 fs/exfat/fatent.c:181\n__exfat_truncate+0x99e/0xe00 fs/exfat/file.c:217\nexfat_truncate+0x11b/0x4f0 fs/exfat/file.c:243\nexfat_setattr+0xa03/0xd40 fs/exfat/file.c:339\nnotify_change+0xb76/0xe10 fs/attr.c:336\ndo_truncate+0x1ea/0x2d0 fs/open.c:65\nMove the is_valid_cluster() helper from fatent.c to a common\nheader to make it reusable in other *.c files. And add is_valid_cluster()\nto validate if cluster number is within valid range in exfat_clear_bitmap()\nand exfat_set_bitmap()."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, prevent module exfat from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."}, "name": "CVE-2022-49560", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49560\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49560\nhttps://lore.kernel.org/linux-cve-announce/2025022617-CVE-2022-49560-d207@gregkh/T"], "statement": "Already fixed for the latest versions of Red Hat Enterprise Linux 9 (and later) and not applicable before (because the related source code was not being used).", "threat_severity": "Moderate"}

{}