310 lines
16 KiB
JSON
310 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-49626",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-02-26T02:21:30.421Z",
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"datePublished": "2025-02-26T02:23:41.274Z",
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"dateUpdated": "2026-05-11T19:03:34.174Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T19:03:34.174Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: fix use after free when disabling sriov\n\nUse after free is detected by kfence when disabling sriov. What was read\nafter being freed was vf->pci_dev: it was freed from pci_disable_sriov\nand later read in efx_ef10_sriov_free_vf_vports, called from\nefx_ef10_sriov_free_vf_vswitching.\n\nSet the pointer to NULL at release time to not trying to read it later.\n\nReproducer and dmesg log (note that kfence doesn't detect it every time):\n$ echo 1 > /sys/class/net/enp65s0f0np0/device/sriov_numvfs\n$ echo 0 > /sys/class/net/enp65s0f0np0/device/sriov_numvfs\n\n BUG: KFENCE: use-after-free read in efx_ef10_sriov_free_vf_vswitching+0x82/0x170 [sfc]\n\n Use-after-free read at 0x00000000ff3c1ba5 (in kfence-#224):\n efx_ef10_sriov_free_vf_vswitching+0x82/0x170 [sfc]\n efx_ef10_pci_sriov_disable+0x38/0x70 [sfc]\n efx_pci_sriov_configure+0x24/0x40 [sfc]\n sriov_numvfs_store+0xfe/0x140\n kernfs_fop_write_iter+0x11c/0x1b0\n new_sync_write+0x11f/0x1b0\n vfs_write+0x1eb/0x280\n ksys_write+0x5f/0xe0\n do_syscall_64+0x5c/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\n kfence-#224: 0x00000000edb8ef95-0x00000000671f5ce1, size=2792, cache=kmalloc-4k\n\n allocated by task 6771 on cpu 10 at 3137.860196s:\n pci_alloc_dev+0x21/0x60\n pci_iov_add_virtfn+0x2a2/0x320\n sriov_enable+0x212/0x3e0\n efx_ef10_sriov_configure+0x67/0x80 [sfc]\n efx_pci_sriov_configure+0x24/0x40 [sfc]\n sriov_numvfs_store+0xba/0x140\n kernfs_fop_write_iter+0x11c/0x1b0\n new_sync_write+0x11f/0x1b0\n vfs_write+0x1eb/0x280\n ksys_write+0x5f/0xe0\n do_syscall_64+0x5c/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\n freed by task 6771 on cpu 12 at 3170.991309s:\n device_release+0x34/0x90\n kobject_cleanup+0x3a/0x130\n pci_iov_remove_virtfn+0xd9/0x120\n sriov_disable+0x30/0xe0\n efx_ef10_pci_sriov_disable+0x57/0x70 [sfc]\n efx_pci_sriov_configure+0x24/0x40 [sfc]\n sriov_numvfs_store+0xfe/0x140\n kernfs_fop_write_iter+0x11c/0x1b0\n new_sync_write+0x11f/0x1b0\n vfs_write+0x1eb/0x280\n ksys_write+0x5f/0xe0\n do_syscall_64+0x5c/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ethernet/sfc/ef10_sriov.c"
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],
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"versions": [
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{
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"version": "3c5eb87605e85146a78de589b5070a37862425db",
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"lessThan": "3199e34912d84cdfb8a93a984c5ae5c73fb13e84",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c5eb87605e85146a78de589b5070a37862425db",
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"lessThan": "c9e75bb22a26e391f189f5a5133dd63dcb57fdaa",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c5eb87605e85146a78de589b5070a37862425db",
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"lessThan": "9c854ae512b89229aeee93849e9bd4c115b37909",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c5eb87605e85146a78de589b5070a37862425db",
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"lessThan": "bcad880865bfb421885364b1f0c7351280fe2b97",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c5eb87605e85146a78de589b5070a37862425db",
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"lessThan": "c2240500817b3b4b996cdf2a461a3a5679f49b94",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c5eb87605e85146a78de589b5070a37862425db",
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"lessThan": "58d93e9d160c0de6d867c7eb4c2206671a351eb1",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c5eb87605e85146a78de589b5070a37862425db",
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"lessThan": "e435c4aeeaa073091f7f3b7735af2ef5c97d63f2",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "3c5eb87605e85146a78de589b5070a37862425db",
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"lessThan": "ebe41da5d47ac0fff877e57bd14c54dccf168827",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ethernet/sfc/ef10_sriov.c"
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],
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"versions": [
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{
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"version": "4.2",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.2",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.9.324",
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"lessThanOrEqual": "4.9.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.14.289",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.19.253",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.207",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.132",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.56",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.18.13",
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"lessThanOrEqual": "5.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.19",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.2",
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"versionEndExcluding": "4.9.324"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.2",
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"versionEndExcluding": "4.14.289"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.2",
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"versionEndExcluding": "4.19.253"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.2",
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"versionEndExcluding": "5.4.207"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.2",
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"versionEndExcluding": "5.10.132"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.2",
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"versionEndExcluding": "5.15.56"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.2",
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"versionEndExcluding": "5.18.13"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.2",
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"versionEndExcluding": "5.19"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3199e34912d84cdfb8a93a984c5ae5c73fb13e84"
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},
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{
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"url": "https://git.kernel.org/stable/c/c9e75bb22a26e391f189f5a5133dd63dcb57fdaa"
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},
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{
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"url": "https://git.kernel.org/stable/c/9c854ae512b89229aeee93849e9bd4c115b37909"
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},
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{
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"url": "https://git.kernel.org/stable/c/bcad880865bfb421885364b1f0c7351280fe2b97"
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},
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{
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"url": "https://git.kernel.org/stable/c/c2240500817b3b4b996cdf2a461a3a5679f49b94"
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},
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{
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"url": "https://git.kernel.org/stable/c/58d93e9d160c0de6d867c7eb4c2206671a351eb1"
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},
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{
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"url": "https://git.kernel.org/stable/c/e435c4aeeaa073091f7f3b7735af2ef5c97d63f2"
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},
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{
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"url": "https://git.kernel.org/stable/c/ebe41da5d47ac0fff877e57bd14c54dccf168827"
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}
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],
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"title": "sfc: fix use after free when disabling sriov",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 7.8,
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"attackVector": "LOCAL",
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "HIGH"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2022-49626",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2025-02-27T18:15:26.254621Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-416",
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"description": "CWE-416 Use After Free"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-02-27T18:22:31.594Z"
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}
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}
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]
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}
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} |