mirror of
https://github.com/CVEProject/cvelist.git
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135 lines
7.7 KiB
JSON
135 lines
7.7 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-2024-56755",
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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\nnetfs/fscache: Add a memory barrier for FSCACHE_VOLUME_CREATING\n\nIn fscache_create_volume(), there is a missing memory barrier between the\nbit-clearing operation and the wake-up operation. This may cause a\nsituation where, after a wake-up, the bit-clearing operation hasn't been\ndetected yet, leading to an indefinite wait. The triggering process is as\nfollows:\n\n [cookie1] [cookie2] [volume_work]\nfscache_perform_lookup\n fscache_create_volume\n fscache_perform_lookup\n fscache_create_volume\n\t\t\t fscache_create_volume_work\n cachefiles_acquire_volume\n clear_and_wake_up_bit\n test_and_set_bit\n test_and_set_bit\n goto maybe_wait\n goto no_wait\n\nIn the above process, cookie1 and cookie2 has the same volume. When cookie1\nenters the -no_wait- process, it will clear the bit and wake up the waiting\nprocess. If a barrier is missing, it may cause cookie2 to remain in the\n-wait- process indefinitely.\n\nIn commit 3288666c7256 (\"fscache: Use clear_and_wake_up_bit() in\nfscache_create_volume_work()\"), barriers were added to similar operations\nin fscache_create_volume_work(), but fscache_create_volume() was missed.\n\nBy combining the clear and wake operations into clear_and_wake_up_bit() to\nfix this issue."
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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": "bfa22da3ed652aa15acd4246fa13a0de6dbe4a59",
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"version_value": "ddab02607eed9e415dc62fde421d4329e5345315"
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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": "5.17",
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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": "5.17",
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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": "6.1.120",
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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": "6.6.64",
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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": "6.11.11",
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"lessThanOrEqual": "6.11.*",
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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": "6.12.2",
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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": "6.13-rc1",
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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/ddab02607eed9e415dc62fde421d4329e5345315",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/ddab02607eed9e415dc62fde421d4329e5345315"
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},
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{
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"url": "https://git.kernel.org/stable/c/539fabba965e119b98066fc6ba5257b5eaf4eda2",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/539fabba965e119b98066fc6ba5257b5eaf4eda2"
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},
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{
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"url": "https://git.kernel.org/stable/c/8beb682cc9a0798a280bbb95e3e41617237090b2",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/8beb682cc9a0798a280bbb95e3e41617237090b2"
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},
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{
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"url": "https://git.kernel.org/stable/c/8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/8cc1df3113cb71a0df2c46dd5b102c9e11c8a8c6"
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},
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{
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"url": "https://git.kernel.org/stable/c/22f9400a6f3560629478e0a64247b8fcc811a24d",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/22f9400a6f3560629478e0a64247b8fcc811a24d"
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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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} |