{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-48840", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.909Z", "datePublished": "2024-07-16T12:25:11.173Z", "dateUpdated": "2026-05-11T18:48:11.010Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T18:48:11.010Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niavf: Fix hang during reboot/shutdown\n\nRecent commit 974578017fc1 (\"iavf: Add waiting so the port is\ninitialized in remove\") adds a wait-loop at the beginning of\niavf_remove() to ensure that port initialization is finished\nprior unregistering net device. This causes a regression\nin reboot/shutdown scenario because in this case callback\niavf_shutdown() is called and this callback detaches the device,\nmakes it down if it is running and sets its state to __IAVF_REMOVE.\nLater shutdown callback of associated PF driver (e.g. ice_shutdown)\nis called. That callback calls among other things sriov_disable()\nthat calls indirectly iavf_remove() (see stack trace below).\nAs the adapter state is already __IAVF_REMOVE then the mentioned\nloop is end-less and shutdown process hangs.\n\nThe patch fixes this by checking adapter's state at the beginning\nof iavf_remove() and skips the rest of the function if the adapter\nis already in remove state (shutdown is in progress).\n\nReproducer:\n1. Create VF on PF driven by ice or i40e driver\n2. Ensure that the VF is bound to iavf driver\n3. Reboot\n\n[52625.981294] sysrq: SysRq : Show Blocked State\n[52625.988377] task:reboot state:D stack: 0 pid:17359 ppid: 1 f2\n[52625.996732] Call Trace:\n[52625.999187] __schedule+0x2d1/0x830\n[52626.007400] schedule+0x35/0xa0\n[52626.010545] schedule_hrtimeout_range_clock+0x83/0x100\n[52626.020046] usleep_range+0x5b/0x80\n[52626.023540] iavf_remove+0x63/0x5b0 [iavf]\n[52626.027645] pci_device_remove+0x3b/0xc0\n[52626.031572] device_release_driver_internal+0x103/0x1f0\n[52626.036805] pci_stop_bus_device+0x72/0xa0\n[52626.040904] pci_stop_and_remove_bus_device+0xe/0x20\n[52626.045870] pci_iov_remove_virtfn+0xba/0x120\n[52626.050232] sriov_disable+0x2f/0xe0\n[52626.053813] ice_free_vfs+0x7c/0x340 [ice]\n[52626.057946] ice_remove+0x220/0x240 [ice]\n[52626.061967] ice_shutdown+0x16/0x50 [ice]\n[52626.065987] pci_device_shutdown+0x34/0x60\n[52626.070086] device_shutdown+0x165/0x1c5\n[52626.074011] kernel_restart+0xe/0x30\n[52626.077593] __do_sys_reboot+0x1d2/0x210\n[52626.093815] do_syscall_64+0x5b/0x1a0\n[52626.097483] entry_SYSCALL_64_after_hwframe+0x65/0xca" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/intel/iavf/iavf_main.c" ], "versions": [ { "version": "85aa76066fef64de8a48d0da6b4071ceac455a94", "lessThan": "80974bb730270199c6fcb189af04d5945b87e813", "status": "affected", "versionType": "git" }, { "version": "7b9515172ab4d4c6ac0eae4b71013ee6ce932205", "lessThan": "4477b9a4193b35eb3a8afd2adf2d42add2f88d57", "status": "affected", "versionType": "git" }, { "version": "974578017fc1fdd06cea8afb9dfa32602e8529ed", "lessThan": "b04683ff8f0823b869c219c78ba0d974bddea0b5", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/intel/iavf/iavf_main.c" ], "versions": [ { "version": "5.15.27", "lessThan": "5.15.31", "status": "affected", "versionType": "semver" }, { "version": "5.16.13", "lessThan": "5.16.17", "status": "affected", "versionType": "semver" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.27", "versionEndExcluding": "5.15.31" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16.13", "versionEndExcluding": "5.16.17" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/80974bb730270199c6fcb189af04d5945b87e813" }, { "url": "https://git.kernel.org/stable/c/4477b9a4193b35eb3a8afd2adf2d42add2f88d57" }, { "url": "https://git.kernel.org/stable/c/b04683ff8f0823b869c219c78ba0d974bddea0b5" } ], "title": "iavf: Fix hang during reboot/shutdown", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.614Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/80974bb730270199c6fcb189af04d5945b87e813", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/4477b9a4193b35eb3a8afd2adf2d42add2f88d57", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/b04683ff8f0823b869c219c78ba0d974bddea0b5", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2022-48840", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:56:57.340202Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:09.921Z" } } ] } }