514 lines
25 KiB
JSON
514 lines
25 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-2026-23368",
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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": "2026-01-13T15:37:46.003Z",
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"datePublished": "2026-03-25T10:27:49.889Z",
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"dateUpdated": "2026-11-10T12:42:45.831Z"
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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": "2026-05-11T22:05:31.385Z"
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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\nnet: phy: register phy led_triggers during probe to avoid AB-BA deadlock\n\nThere is an AB-BA deadlock when both LEDS_TRIGGER_NETDEV and\nLED_TRIGGER_PHY are enabled:\n\n[ 1362.049207] [<8054e4b8>] led_trigger_register+0x5c/0x1fc <-- Trying to get lock \"triggers_list_lock\" via down_write(&triggers_list_lock);\n[ 1362.054536] [<80662830>] phy_led_triggers_register+0xd0/0x234\n[ 1362.060329] [<8065e200>] phy_attach_direct+0x33c/0x40c\n[ 1362.065489] [<80651fc4>] phylink_fwnode_phy_connect+0x15c/0x23c\n[ 1362.071480] [<8066ee18>] mtk_open+0x7c/0xba0\n[ 1362.075849] [<806d714c>] __dev_open+0x280/0x2b0\n[ 1362.080384] [<806d7668>] __dev_change_flags+0x244/0x24c\n[ 1362.085598] [<806d7698>] dev_change_flags+0x28/0x78\n[ 1362.090528] [<807150e4>] dev_ioctl+0x4c0/0x654 <-- Hold lock \"rtnl_mutex\" by calling rtnl_lock();\n[ 1362.094985] [<80694360>] sock_ioctl+0x2f4/0x4e0\n[ 1362.099567] [<802e9c4c>] sys_ioctl+0x32c/0xd8c\n[ 1362.104022] [<80014504>] syscall_common+0x34/0x58\n\nHere LED_TRIGGER_PHY is registering LED triggers during phy_attach\nwhile holding RTNL and then taking triggers_list_lock.\n\n[ 1362.191101] [<806c2640>] register_netdevice_notifier+0x60/0x168 <-- Trying to get lock \"rtnl_mutex\" via rtnl_lock();\n[ 1362.197073] [<805504ac>] netdev_trig_activate+0x194/0x1e4\n[ 1362.202490] [<8054e28c>] led_trigger_set+0x1d4/0x360 <-- Hold lock \"triggers_list_lock\" by down_read(&triggers_list_lock);\n[ 1362.207511] [<8054eb38>] led_trigger_write+0xd8/0x14c\n[ 1362.212566] [<80381d98>] sysfs_kf_bin_write+0x80/0xbc\n[ 1362.217688] [<8037fcd8>] kernfs_fop_write_iter+0x17c/0x28c\n[ 1362.223174] [<802cbd70>] vfs_write+0x21c/0x3c4\n[ 1362.227712] [<802cc0c4>] ksys_write+0x78/0x12c\n[ 1362.232164] [<80014504>] syscall_common+0x34/0x58\n\nHere LEDS_TRIGGER_NETDEV is being enabled on an LED. It first takes\ntriggers_list_lock and then RTNL. A classical AB-BA deadlock.\n\nphy_led_triggers_registers() does not require the RTNL, it does not\nmake any calls into the network stack which require protection. There\nis also no requirement the PHY has been attached to a MAC, the\ntriggers only make use of phydev state. This allows the call to\nphy_led_triggers_registers() to be placed elsewhere. PHY probe() and\nrelease() don't hold RTNL, so solving the AB-BA deadlock."
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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/phy/phy_device.c"
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],
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{
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"version": "06f502f57d0d7728f9fa0f157ec5e4111ddb98f6",
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"drivers/net/phy/phy_device.c"
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},
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},
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},
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{
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"version": "6.18.17",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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},
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{
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"version": "6.19.7",
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"lessThanOrEqual": "6.19.*",
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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": "7.0",
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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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"nodes": [
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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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{
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"url": "https://git.kernel.org/stable/c/c6ffc2d2338d325e1edd0c702e3ee623aa5fdc6a"
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},
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{
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},
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"url": "https://git.kernel.org/stable/c/241cd64cf2e32b28ead151b1795cd8fef2b6e482"
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},
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{
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},
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{
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"url": "https://git.kernel.org/stable/c/c8dbdc6e380e7e96a51706db3e4b7870d8a9402d"
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}
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],
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"title": "net: phy: register phy led_triggers during probe to avoid AB-BA deadlock",
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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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"x_adpType": "supplier",
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"providerMetadata": {
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"shortName": "siemens-SADP",
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"dateUpdated": "2026-11-10T12:42:45.831Z"
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},
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"affected": [
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{
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"vendor": "Siemens",
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"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
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"versions": [
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{
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"status": "affected",
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"versions": [
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{
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"status": "affected",
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},
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{
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|
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.5",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-082556.html"
|
|
},
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
|
|
},
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
|
|
},
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2026-23368",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2026-11-05T21:28:33.629519Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-11-05T21:33:43.117Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |