cvelist/2024/49xxx/CVE-2024-49926.json
2025-01-24 17:00:58 +00:00

114 lines
6.3 KiB
JSON

{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-49926",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrcu-tasks: Fix access non-existent percpu rtpcp variable in rcu_tasks_need_gpcb()\n\nFor kernels built with CONFIG_FORCE_NR_CPUS=y, the nr_cpu_ids is\ndefined as NR_CPUS instead of the number of possible cpus, this\nwill cause the following system panic:\n\nsmpboot: Allowing 4 CPUs, 0 hotplug CPUs\n...\nsetup_percpu: NR_CPUS:512 nr_cpumask_bits:512 nr_cpu_ids:512 nr_node_ids:1\n...\nBUG: unable to handle page fault for address: ffffffff9911c8c8\nOops: 0000 [#1] PREEMPT SMP PTI\nCPU: 0 PID: 15 Comm: rcu_tasks_trace Tainted: G W\n6.6.21 #1 5dc7acf91a5e8e9ac9dcfc35bee0245691283ea6\nRIP: 0010:rcu_tasks_need_gpcb+0x25d/0x2c0\nRSP: 0018:ffffa371c00a3e60 EFLAGS: 00010082\nCR2: ffffffff9911c8c8 CR3: 000000040fa20005 CR4: 00000000001706f0\nCall Trace:\n<TASK>\n? __die+0x23/0x80\n? page_fault_oops+0xa4/0x180\n? exc_page_fault+0x152/0x180\n? asm_exc_page_fault+0x26/0x40\n? rcu_tasks_need_gpcb+0x25d/0x2c0\n? __pfx_rcu_tasks_kthread+0x40/0x40\nrcu_tasks_one_gp+0x69/0x180\nrcu_tasks_kthread+0x94/0xc0\nkthread+0xe8/0x140\n? __pfx_kthread+0x40/0x40\nret_from_fork+0x34/0x80\n? __pfx_kthread+0x40/0x40\nret_from_fork_asm+0x1b/0x80\n</TASK>\n\nConsidering that there may be holes in the CPU numbers, use the\nmaximum possible cpu number, instead of nr_cpu_ids, for configuring\nenqueue and dequeue limits.\n\n[ neeraj.upadhyay: Fix htmldocs build error reported by Stephen Rothwell ]"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
"version_value": "b3b2431ed27f4ebc28e26cdf005c1de42dc60bdf"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "6.6.60",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.10.14",
"lessThanOrEqual": "6.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.11.3",
"lessThanOrEqual": "6.11.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/b3b2431ed27f4ebc28e26cdf005c1de42dc60bdf",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/b3b2431ed27f4ebc28e26cdf005c1de42dc60bdf"
},
{
"url": "https://git.kernel.org/stable/c/3104bddc666ff64b90491868bbc4c7ebdd90aedf",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/3104bddc666ff64b90491868bbc4c7ebdd90aedf"
},
{
"url": "https://git.kernel.org/stable/c/05095271a4fb0f6497121a057f9a2edf386d5d96",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/05095271a4fb0f6497121a057f9a2edf386d5d96"
},
{
"url": "https://git.kernel.org/stable/c/fd70e9f1d85f5323096ad313ba73f5fe3d15ea41",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/fd70e9f1d85f5323096ad313ba73f5fe3d15ea41"
}
]
},
"generator": {
"engine": "bippy-5f407fcff5a0"
}
}