264 lines
14 KiB
JSON
264 lines
14 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-2026-81005",
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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": "2026-08-26T14:34:25.812Z",
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"datePublished": "2026-09-11T19:42:57.460Z",
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"dateUpdated": "2026-10-19T08:46:29.573Z"
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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": "2026-10-19T08:46:29.573Z"
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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\nipmi: si: Fix NULL pointer dereference after failed registration\n\ntry_smi_init() allocates new_smi->si_sm and later calls\nipmi_register_smi_mod(), which maps to ipmi_add_smi().\n\nDuring ipmi_add_smi(), the upper IPMI message handler obtains the\ninitial BMC device information through __bmc_get_device_id(). This can\nfail if the BMC does not return a successful response to the Get Device\nID command.\n\nWhen the BMC returns a nonzero completion code, the device-id helper\nretries the command and eventually returns -EIO if the device ID still\ncannot be fetched.\n\nOn this failure path, ipmi_add_smi() logs \"Unable to get the device id\"\nand goes to out_err_started, where it invokes the lower driver's\nshutdown callback. try_smi_init() then logs the returned registration\nfailure:\n\n ipmi_si IPI0001:00: IPMI message handler: Unable to get the device id: -5\n ipmi_si IPI0001:00: Unable to register device: error -5\n\nFor ipmi_si, the shutdown callback is shutdown_smi(), which cleans up\nthe SI state machine data, frees smi_info->si_sm, and sets\nsmi_info->si_sm and smi_info->intf to NULL.\n\nHowever, intf->in_shutdown is not set on this failed-registration\nrollback path. Therefore, the asynchronous redo_bmc_reg work item can\nstill retry BMC device-id probing after the lower driver has already\ncleared its SI state machine data. In the observed case, that retry path\nreached start_next_msg(), which passed the NULL smi_info->si_sm pointer\nto the selected KCS state machine handler:\n\nBUG: unable to handle kernel NULL pointer dereference at 0000000000000000\nWorkqueue: events redo_bmc_reg [ipmi_msghandler]\nRIP: start_kcs_transaction+0x2c/0x190 [ipmi_si]\nCall Trace:\n start_next_msg+0x50/0x80 [ipmi_si]\n check_start_timer_thread.part.9+0x3b/0x50 [ipmi_si]\n sender+0x69/0x80 [ipmi_si]\n i_ipmi_request+0x2ac/0x9d0 [ipmi_msghandler]\n __get_device_id.isra.29+0xaa/0x180 [ipmi_msghandler]\n __bmc_get_device_id+0xef/0x950 [ipmi_msghandler]\n redo_bmc_reg+0x52/0x60 [ipmi_msghandler]\n process_one_work+0x1a7/0x360\n\nSet intf->in_shutdown on the out_err_started path before invoking the\nlower driver's shutdown callback. This prevents later redo_bmc_reg\nretries from using an interface whose lower driver state has been\ncleaned up, and applies the same shutdown state to other IPMI interfaces\nas well."
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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/char/ipmi/ipmi_msghandler.c"
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],
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"versions": [
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{
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"version": "2512e40e48d21d8bac09f7e91d2c3ceb2d3b50b2",
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"lessThan": "75ecc80ef0614a9f8441ab476fb748d3e919bea8",
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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": "2512e40e48d21d8bac09f7e91d2c3ceb2d3b50b2",
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"lessThan": "b11a1e545ad7a2f8f9ba7276b4ae9429c3399456",
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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": "2512e40e48d21d8bac09f7e91d2c3ceb2d3b50b2",
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"lessThan": "f390b0e781ca689515b659f94ef05f01497ed833",
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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": "2512e40e48d21d8bac09f7e91d2c3ceb2d3b50b2",
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"lessThan": "d377bf743f29b41729a084a633874ef9c1a13c6a",
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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": "2512e40e48d21d8bac09f7e91d2c3ceb2d3b50b2",
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"lessThan": "d4be659a3e56f4eb16039ab8a1162efea086a714",
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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": "2512e40e48d21d8bac09f7e91d2c3ceb2d3b50b2",
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"lessThan": "53af3a8bae0a93c1342e1b5519812203332aca8e",
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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": "2512e40e48d21d8bac09f7e91d2c3ceb2d3b50b2",
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"lessThan": "8ada17dd4c4ffd6b94621e735d77eda196ce118f",
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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": "2512e40e48d21d8bac09f7e91d2c3ceb2d3b50b2",
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"lessThan": "6d920a75df9a83ab096b3cde7a643b656e4fdfeb",
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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": "288bd736c8a027040fc261c86a87b65e7bc3f6fa",
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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": "4.18.10",
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"lessThan": "4.19",
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"status": "affected",
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"versionType": "semver"
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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/char/ipmi/ipmi_msghandler.c"
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],
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"versions": [
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{
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"version": "4.19",
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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": "4.19",
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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": "5.10.270",
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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": "5.15.221",
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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": "6.1.188",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.157",
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"lessThanOrEqual": "6.6.*",
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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": "6.12.109",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.50",
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"lessThanOrEqual": "6.18.*",
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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": "7.2.4",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "4.19",
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"versionEndExcluding": "5.10.270"
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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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]
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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/75ecc80ef0614a9f8441ab476fb748d3e919bea8"
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},
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{
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"url": "https://git.kernel.org/stable/c/b11a1e545ad7a2f8f9ba7276b4ae9429c3399456"
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},
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{
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"url": "https://git.kernel.org/stable/c/f390b0e781ca689515b659f94ef05f01497ed833"
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},
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{
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"url": "https://git.kernel.org/stable/c/d377bf743f29b41729a084a633874ef9c1a13c6a"
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},
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{
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"url": "https://git.kernel.org/stable/c/d4be659a3e56f4eb16039ab8a1162efea086a714"
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},
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{
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"url": "https://git.kernel.org/stable/c/53af3a8bae0a93c1342e1b5519812203332aca8e"
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},
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{
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"url": "https://git.kernel.org/stable/c/8ada17dd4c4ffd6b94621e735d77eda196ce118f"
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},
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{
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"url": "https://git.kernel.org/stable/c/6d920a75df9a83ab096b3cde7a643b656e4fdfeb"
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}
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],
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"title": "ipmi: si: Fix NULL pointer dereference after failed registration",
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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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}
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} |