In the Linux kernel, the following vulnerability has been resolved:
um: vector: Do not use drvdata in release
The drvdata is not available in release. Let's just use containerof() to get the vectordevice instance. Otherwise, removing a vector device will result in a crash:
RIP: 0033:vectordevicerelease+0xf/0x50 RSP: 00000000e187bc40 EFLAGS: 00010202 RAX: 0000000060028f61 RBX: 00000000600f1baf RCX: 00000000620074e0 RDX: 000000006220b9c0 RSI: 0000000060551c80 RDI: 0000000000000000 RBP: 00000000e187bc50 R08: 00000000603ad594 R09: 00000000e187bb70 R10: 000000000000135a R11: 00000000603ad422 R12: 00000000623ae028 R13: 000000006287a200 R14: 0000000062006d30 R15: 00000000623700b6 Kernel panic - not syncing: Segfault with no mm CPU: 0 UID: 0 PID: 16 Comm: kworker/0:1 Not tainted 6.12.0-rc6-g59b723cd2adb #1 Workqueue: events mcworkproc Stack: 60028f61 623ae028 e187bc80 60276fcd 6220b9c0 603f5820 623ae028 00000000 e187bcb0 603a2bcd 623ae000 62370010 Call Trace: [<60028f61>] ? vectordevicerelease+0x0/0x50 [<60276fcd>] devicerelease+0x70/0xba [<603a2bcd>] kobjectput+0xba/0xe7 [<60277265>] putdevice+0x19/0x1c [<60281266>] platformdeviceput+0x26/0x29 [<60281e5f>] platformdeviceunregister+0x2c/0x2e [<60029422>] vectorremove+0x52/0x58 [<60031316>] ? mconsolereply+0x0/0x50 [<600310c8>] mconsoleremove+0x160/0x1cc [<603b19f4>] ? strlen+0x0/0x15 [<60066611>] ? _dequeueentity+0x1a9/0x206 [<600666a7>] ? setnextentity+0x39/0x63 [<6006666e>] ? setnextentity+0x0/0x63 [<60038fa6>] ? umsetsignals+0x0/0x43 [<6003070c>] mcworkproc+0x77/0x91 [<60057664>] processscheduledworks+0x1b3/0x2dd [<60055f32>] ? assignwork+0x0/0x58 [<60057f0a>] workerthread+0x1e9/0x293 [<6005406f>] ? setpfworker+0x0/0x64 [<6005d65d>] ? archlocalirqsave+0x0/0x2d [<6005d748>] ? kthreadexit+0x0/0x3a [<60057d21>] ? workerthread+0x0/0x293 [<6005dbf1>] kthread+0x126/0x12b [<600219c5>] newthread_handler+0x85/0xb6
[
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"65752197690930202777290294337823494908",
"64061335516152234185704464742520084229",
"214703563964224059524718402619864707468",
"153175540875672548595928375327054039243"
]
},
"id": "CVE-2024-53181-062b6397",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@12f52e373d63f008ee386f371bdd82a3a3779199",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"65752197690930202777290294337823494908",
"64061335516152234185704464742520084229",
"214703563964224059524718402619864707468",
"153175540875672548595928375327054039243"
]
},
"id": "CVE-2024-53181-45b0f5e4",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@51b39d741970742a5c41136241a9c48ac607cf82",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c",
"function": "vector_device_release"
},
"digest": {
"function_hash": "180361863852601651910480579170612090023",
"length": 174.0
},
"id": "CVE-2024-53181-611aaae5",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8ed7793f6f589b4e1f0b38f8448578d2a48f9c82",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c",
"function": "vector_device_release"
},
"digest": {
"function_hash": "180361863852601651910480579170612090023",
"length": 174.0
},
"id": "CVE-2024-53181-7bd70b1a",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e9d36f7e71a907ec507f84ee5d60a622c345cac4",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c",
"function": "vector_device_release"
},
"digest": {
"function_hash": "180361863852601651910480579170612090023",
"length": 174.0
},
"id": "CVE-2024-53181-8d4b21b7",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@376c7f0beb8f6f3800fc3013ef2f422d0cbfbf92",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"65752197690930202777290294337823494908",
"64061335516152234185704464742520084229",
"214703563964224059524718402619864707468",
"153175540875672548595928375327054039243"
]
},
"id": "CVE-2024-53181-ac4b0fbf",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e9d36f7e71a907ec507f84ee5d60a622c345cac4",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c",
"function": "vector_device_release"
},
"digest": {
"function_hash": "180361863852601651910480579170612090023",
"length": 174.0
},
"id": "CVE-2024-53181-c5048e88",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@12f52e373d63f008ee386f371bdd82a3a3779199",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c",
"function": "vector_device_release"
},
"digest": {
"function_hash": "180361863852601651910480579170612090023",
"length": 174.0
},
"id": "CVE-2024-53181-ce13ea3d",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8204dd589c4f25a7618eece5da3f0871e02af8ae",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"65752197690930202777290294337823494908",
"64061335516152234185704464742520084229",
"214703563964224059524718402619864707468",
"153175540875672548595928375327054039243"
]
},
"id": "CVE-2024-53181-d8f37a7e",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@376c7f0beb8f6f3800fc3013ef2f422d0cbfbf92",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"65752197690930202777290294337823494908",
"64061335516152234185704464742520084229",
"214703563964224059524718402619864707468",
"153175540875672548595928375327054039243"
]
},
"id": "CVE-2024-53181-d9f91241",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8ed7793f6f589b4e1f0b38f8448578d2a48f9c82",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c",
"function": "vector_device_release"
},
"digest": {
"function_hash": "180361863852601651910480579170612090023",
"length": 174.0
},
"id": "CVE-2024-53181-de8ed503",
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@51b39d741970742a5c41136241a9c48ac607cf82",
"signature_version": "v1"
},
{
"deprecated": false,
"target": {
"file": "arch/um/drivers/vector_kern.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"65752197690930202777290294337823494908",
"64061335516152234185704464742520084229",
"214703563964224059524718402619864707468",
"153175540875672548595928375327054039243"
]
},
"id": "CVE-2024-53181-fcc40142",
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8204dd589c4f25a7618eece5da3f0871e02af8ae",
"signature_version": "v1"
}
]