mirror of
https://github.com/CVEProject/cvelist.git
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113 lines
5.8 KiB
JSON
113 lines
5.8 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-2024-26785",
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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\niommufd: Fix protection fault in iommufd_test_syz_conv_iova\n\nSyzkaller reported the following bug:\n\n general protection fault, probably for non-canonical address 0xdffffc0000000038: 0000 [#1] SMP KASAN\n KASAN: null-ptr-deref in range [0x00000000000001c0-0x00000000000001c7]\n Call Trace:\n lock_acquire\n lock_acquire+0x1ce/0x4f0\n down_read+0x93/0x4a0\n iommufd_test_syz_conv_iova+0x56/0x1f0\n iommufd_test_access_rw.isra.0+0x2ec/0x390\n iommufd_test+0x1058/0x1e30\n iommufd_fops_ioctl+0x381/0x510\n vfs_ioctl\n __do_sys_ioctl\n __se_sys_ioctl\n __x64_sys_ioctl+0x170/0x1e0\n do_syscall_x64\n do_syscall_64+0x71/0x140\n\nThis is because the new iommufd_access_change_ioas() sets access->ioas to\nNULL during its process, so the lock might be gone in a concurrent racing\ncontext.\n\nFix this by doing the same access->ioas sanity as iommufd_access_rw() and\niommufd_access_pin_pages() functions do."
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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": "9227da7816dd",
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"version_value": "fd4d5cd7a2e8"
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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": "6.6",
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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": "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": "6.6.55",
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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": "6.7.9",
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"lessThanOrEqual": "6.7.*",
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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": "6.8",
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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/fd4d5cd7a2e8f08357c9bfc0905957cffe8ce568",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/fd4d5cd7a2e8f08357c9bfc0905957cffe8ce568"
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},
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{
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"url": "https://git.kernel.org/stable/c/fc719ecbca45c9c046640d72baddba3d83e0bc0b",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/fc719ecbca45c9c046640d72baddba3d83e0bc0b"
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},
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{
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"url": "https://git.kernel.org/stable/c/cf7c2789822db8b5efa34f5ebcf1621bc0008d48",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/cf7c2789822db8b5efa34f5ebcf1621bc0008d48"
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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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} |