mirror of
https://github.com/CVEProject/cvelist.git
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114 lines
5.9 KiB
JSON
114 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-2024-44939",
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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\njfs: fix null ptr deref in dtInsertEntry\n\n[syzbot reported]\ngeneral protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\nCPU: 0 PID: 5061 Comm: syz-executor404 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024\nRIP: 0010:dtInsertEntry+0xd0c/0x1780 fs/jfs/jfs_dtree.c:3713\n...\n[Analyze]\nIn dtInsertEntry(), when the pointer h has the same value as p, after writing\nname in UniStrncpy_to_le(), p->header.flag will be cleared. This will cause the\npreviously true judgment \"p->header.flag & BT-LEAF\" to change to no after writing\nthe name operation, this leads to entering an incorrect branch and accessing the\nuninitialized object ih when judging this condition for the second time.\n\n[Fix]\nAfter got the page, check freelist first, if freelist == 0 then exit dtInsert()\nand return -EINVAL."
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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": "1da177e4c3f4",
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"version_value": "53023ab11836"
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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": "6.1.107",
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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": "6.6.47",
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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": "6.10.6",
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"lessThanOrEqual": "6.10.*",
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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",
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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/53023ab11836ac56fd75f7a71ec1356e50920fa9",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/53023ab11836ac56fd75f7a71ec1356e50920fa9"
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},
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{
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"url": "https://git.kernel.org/stable/c/6ea10dbb1e6c58384136e9adfd75f81951e423f6",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/6ea10dbb1e6c58384136e9adfd75f81951e423f6"
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},
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{
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"url": "https://git.kernel.org/stable/c/9c2ac38530d1a3ee558834dfa16c85a40fd0e702",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/9c2ac38530d1a3ee558834dfa16c85a40fd0e702"
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},
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{
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"url": "https://git.kernel.org/stable/c/ce6dede912f064a855acf6f04a04cbb2c25b8c8c",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/ce6dede912f064a855acf6f04a04cbb2c25b8c8c"
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}
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]
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},
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"generator": {
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"engine": "bippy-9e1c9544281a"
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}
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} |