cve-2022-48869
Vulnerability from cvelistv5
Published
2024-08-21 06:09
Modified
2024-11-04 12:18
Severity ?
EPSS score ?
Summary
USB: gadgetfs: Fix race between mounting and unmounting
References
Impacted products
{
"containers": {
"adp": [
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"metrics": [
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"other": {
"content": {
"id": "CVE-2022-48869",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T16:05:35.321755Z",
"version": "2.0.3"
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"dateUpdated": "2024-09-12T17:32:54.495Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/usb/gadget/legacy/inode.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "9a39f4626b36",
"status": "affected",
"version": "e5d82a7360d1",
"versionType": "git"
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"status": "affected",
"version": "e5d82a7360d1",
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{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/usb/gadget/legacy/inode.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.3"
},
{
"lessThan": "5.3",
"status": "unaffected",
"version": "0",
"versionType": "semver"
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{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.230",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.165",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.90",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: gadgetfs: Fix race between mounting and unmounting\n\nThe syzbot fuzzer and Gerald Lee have identified a use-after-free bug\nin the gadgetfs driver, involving processes concurrently mounting and\nunmounting the gadgetfs filesystem. In particular, gadgetfs_fill_super()\ncan race with gadgetfs_kill_sb(), causing the latter to deallocate\nthe_device while the former is using it. The output from KASAN says,\nin part:\n\nBUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:102 [inline]\nBUG: KASAN: use-after-free in atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:176 [inline]\nBUG: KASAN: use-after-free in __refcount_sub_and_test include/linux/refcount.h:272 [inline]\nBUG: KASAN: use-after-free in __refcount_dec_and_test include/linux/refcount.h:315 [inline]\nBUG: KASAN: use-after-free in refcount_dec_and_test include/linux/refcount.h:333 [inline]\nBUG: KASAN: use-after-free in put_dev drivers/usb/gadget/legacy/inode.c:159 [inline]\nBUG: KASAN: use-after-free in gadgetfs_kill_sb+0x33/0x100 drivers/usb/gadget/legacy/inode.c:2086\nWrite of size 4 at addr ffff8880276d7840 by task syz-executor126/18689\n\nCPU: 0 PID: 18689 Comm: syz-executor126 Not tainted 6.1.0-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\nCall Trace:\n \u003cTASK\u003e\n...\n atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:176 [inline]\n __refcount_sub_and_test include/linux/refcount.h:272 [inline]\n __refcount_dec_and_test include/linux/refcount.h:315 [inline]\n refcount_dec_and_test include/linux/refcount.h:333 [inline]\n put_dev drivers/usb/gadget/legacy/inode.c:159 [inline]\n gadgetfs_kill_sb+0x33/0x100 drivers/usb/gadget/legacy/inode.c:2086\n deactivate_locked_super+0xa7/0xf0 fs/super.c:332\n vfs_get_super fs/super.c:1190 [inline]\n get_tree_single+0xd0/0x160 fs/super.c:1207\n vfs_get_tree+0x88/0x270 fs/super.c:1531\n vfs_fsconfig_locked fs/fsopen.c:232 [inline]\n\nThe simplest solution is to ensure that gadgetfs_fill_super() and\ngadgetfs_kill_sb() are serialized by making them both acquire a new\nmutex."
}
],
"providerMetadata": {
"dateUpdated": "2024-11-04T12:18:10.992Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/9a39f4626b361ee7aa10fd990401c37ec3b466ae"
},
{
"url": "https://git.kernel.org/stable/c/856e4b5e53f21edbd15d275dde62228dd94fb2b4"
},
{
"url": "https://git.kernel.org/stable/c/a2e075f40122d8daf587db126c562a67abd69cf9"
},
{
"url": "https://git.kernel.org/stable/c/616fd34d017000ecf9097368b13d8a266f4920b3"
},
{
"url": "https://git.kernel.org/stable/c/d18dcfe9860e842f394e37ba01ca9440ab2178f4"
}
],
"title": "USB: gadgetfs: Fix race between mounting and unmounting",
"x_generator": {
"engine": "bippy-9e1c9544281a"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-48869",
"datePublished": "2024-08-21T06:09:59.526Z",
"dateReserved": "2024-07-16T11:38:08.921Z",
"dateUpdated": "2024-11-04T12:18:10.992Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2022-48869\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-21T07:15:04.080\",\"lastModified\":\"2024-09-06T14:19:58.030\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nUSB: gadgetfs: Fix race between mounting and unmounting\\n\\nThe syzbot fuzzer and Gerald Lee have identified a use-after-free bug\\nin the gadgetfs driver, involving processes concurrently mounting and\\nunmounting the gadgetfs filesystem. In particular, gadgetfs_fill_super()\\ncan race with gadgetfs_kill_sb(), causing the latter to deallocate\\nthe_device while the former is using it. The output from KASAN says,\\nin part:\\n\\nBUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:102 [inline]\\nBUG: KASAN: use-after-free in atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:176 [inline]\\nBUG: KASAN: use-after-free in __refcount_sub_and_test include/linux/refcount.h:272 [inline]\\nBUG: KASAN: use-after-free in __refcount_dec_and_test include/linux/refcount.h:315 [inline]\\nBUG: KASAN: use-after-free in refcount_dec_and_test include/linux/refcount.h:333 [inline]\\nBUG: KASAN: use-after-free in put_dev drivers/usb/gadget/legacy/inode.c:159 [inline]\\nBUG: KASAN: use-after-free in gadgetfs_kill_sb+0x33/0x100 drivers/usb/gadget/legacy/inode.c:2086\\nWrite of size 4 at addr ffff8880276d7840 by task syz-executor126/18689\\n\\nCPU: 0 PID: 18689 Comm: syz-executor126 Not tainted 6.1.0-syzkaller #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\\nCall Trace:\\n \u003cTASK\u003e\\n...\\n atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:176 [inline]\\n __refcount_sub_and_test include/linux/refcount.h:272 [inline]\\n __refcount_dec_and_test include/linux/refcount.h:315 [inline]\\n refcount_dec_and_test include/linux/refcount.h:333 [inline]\\n put_dev drivers/usb/gadget/legacy/inode.c:159 [inline]\\n gadgetfs_kill_sb+0x33/0x100 drivers/usb/gadget/legacy/inode.c:2086\\n deactivate_locked_super+0xa7/0xf0 fs/super.c:332\\n vfs_get_super fs/super.c:1190 [inline]\\n get_tree_single+0xd0/0x160 fs/super.c:1207\\n vfs_get_tree+0x88/0x270 fs/super.c:1531\\n vfs_fsconfig_locked fs/fsopen.c:232 [inline]\\n\\nThe simplest solution is to ensure that gadgetfs_fill_super() and\\ngadgetfs_kill_sb() are serialized by making them both acquire a new\\nmutex.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: USB: gadgetfs: corrige la ejecuci\u00f3n entre montar y desmontar Syzbot fuzzer y Gerald Lee han identificado un error de use-after-free en el controlador gadgetfs, que involucra procesos que montan y desmontan simult\u00e1neamente los gadgetfs. sistema de archivos. En particular, gadgetfs_fill_super() puede competir con gadgetfs_kill_sb(), provocando que este \u00faltimo desasigne the_device mientras el primero lo est\u00e1 usando. El resultado de KASAN dice, en parte: ERROR: KASAN: use-after-free en instrument_atomic_read_write include/linux/instrumented.h:102 [en l\u00ednea] ERROR: KASAN: use-after-free en atomic_fetch_sub_release include/linux/atomic/atomic -instrumented.h:176 [en l\u00ednea] ERROR: KASAN: uso despu\u00e9s de liberaci\u00f3n en __refcount_sub_and_test include/linux/refcount.h:272 [en l\u00ednea] ERROR: KASAN: uso despu\u00e9s de liberaci\u00f3n en __refcount_dec_and_test include/linux/refcount.h :315 [en l\u00ednea] ERROR: KASAN: uso despu\u00e9s de liberaci\u00f3n en refcount_dec_and_test include/linux/refcount.h:333 [en l\u00ednea] ERROR: KASAN: uso despu\u00e9s de liberaci\u00f3n en put_dev drivers/usb/gadget/legacy/inode.c :159 [en l\u00ednea] ERROR: KASAN: use-after-free en gadgetfs_kill_sb+0x33/0x100 drivers/usb/gadget/legacy/inode.c:2086 Escritura de tama\u00f1o 4 en la direcci\u00f3n ffff8880276d7840 mediante la tarea syz-executor126/18689 CPU: 0 PID: 18689 Comunicaci\u00f3n: syz-executor126 No contaminado 6.1.0-syzkaller #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 26/10/2022 Seguimiento de llamadas: ... atomic_fetch_sub_release include/linux/ atomic/atomic-instrumented.h:176 [en l\u00ednea] __refcount_sub_and_test include/linux/refcount.h:272 [en l\u00ednea] __refcount_dec_and_test include/linux/refcount.h:315 [en l\u00ednea] refcount_dec_and_test include/linux/refcount.h:333 [en l\u00ednea ] put_dev drivers/usb/gadget/legacy/inode.c:159 [en l\u00ednea] gadgetfs_kill_sb+0x33/0x100 drivers/usb/gadget/legacy/inode.c:2086 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 vfs_get_super fs /super.c:1190 [en l\u00ednea] get_tree_single+0xd0/0x160 fs/super.c:1207 vfs_get_tree+0x88/0x270 fs/super.c:1531 vfs_fsconfig_locked fs/fsopen.c:232 [en l\u00ednea] La soluci\u00f3n m\u00e1s sencilla es garantizar que gadgetfs_fill_super() y gadgetfs_kill_sb() se serializan haciendo que ambos adquieran un nuevo mutex.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.3\",\"versionEndExcluding\":\"5.4.230\",\"matchCriteriaId\":\"D96CFFAF-9D69-4742-997E-484E7278F62E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.165\",\"matchCriteriaId\":\"C6002D5B-9B6A-4788-B943-E3EE01E01303\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.90\",\"matchCriteriaId\":\"E995CDA5-7223-4FDB-BAD3-81B22C763A43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.8\",\"matchCriteriaId\":\"A6AFE6C9-3F59-4711-B2CF-7D6682FF6BD0\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/616fd34d017000ecf9097368b13d8a266f4920b3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/856e4b5e53f21edbd15d275dde62228dd94fb2b4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9a39f4626b361ee7aa10fd990401c37ec3b466ae\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a2e075f40122d8daf587db126c562a67abd69cf9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d18dcfe9860e842f394e37ba01ca9440ab2178f4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.