mirror of
https://github.com/CVEProject/cvelist.git
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113 lines
5.9 KiB
JSON
113 lines
5.9 KiB
JSON
{
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"data_version": "4.0",
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2022-49406",
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: Fix potential deadlock in blk_ia_range_sysfs_show()\n\nWhen being read, a sysfs attribute is already protected against removal\nwith the kobject node active reference counter. As a result, in\nblk_ia_range_sysfs_show(), there is no need to take the queue sysfs\nlock when reading the value of a range attribute. Using the queue sysfs\nlock in this function creates a potential deadlock situation with the\ndisk removal, something that a lockdep signals with a splat when the\ndevice is removed:\n\n[ 760.703551] Possible unsafe locking scenario:\n[ 760.703551]\n[ 760.703554] CPU0 CPU1\n[ 760.703556] ---- ----\n[ 760.703558] lock(&q->sysfs_lock);\n[ 760.703565] lock(kn->active#385);\n[ 760.703573] lock(&q->sysfs_lock);\n[ 760.703579] lock(kn->active#385);\n[ 760.703587]\n[ 760.703587] *** DEADLOCK ***\n\nSolve this by removing the mutex_lock()/mutex_unlock() calls from\nblk_ia_range_sysfs_show()."
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}
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]
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "n/a"
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}
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]
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}
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]
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "Linux",
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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{
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"version_affected": "<",
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"version_name": "a2247f19ee1c5ad75ef095cdfb909a3244b88aa8",
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"version_value": "dc107c805cde709866b59867ef72b9390199205e"
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},
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"versions": [
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{
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"version": "5.16",
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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": "5.16",
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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": "5.17.14",
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"lessThanOrEqual": "5.17.*",
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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": "5.18.3",
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"lessThanOrEqual": "5.18.*",
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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": "5.19",
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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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"defaultStatus": "affected"
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}
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}
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]
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}
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}
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]
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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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"reference_data": [
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{
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"url": "https://git.kernel.org/stable/c/dc107c805cde709866b59867ef72b9390199205e",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/dc107c805cde709866b59867ef72b9390199205e"
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},
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{
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"url": "https://git.kernel.org/stable/c/717b078bc745ba9a262abebed9806a17e8bbb77b",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/717b078bc745ba9a262abebed9806a17e8bbb77b"
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},
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{
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"url": "https://git.kernel.org/stable/c/41e46b3c2aa24f755b2ae9ec4ce931ba5f0d8532",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/41e46b3c2aa24f755b2ae9ec4ce931ba5f0d8532"
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}
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]
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},
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"generator": {
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"engine": "bippy-5f407fcff5a0"
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}
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} |