mirror of
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"-Synchronized-Data."
This commit is contained in:
CVE Team
parent
43333bc4fa
commit
265c4e4949
@ -84,7 +84,7 @@
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|
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@ -142,6 +142,6 @@
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@ -82,7 +82,7 @@
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@ -130,6 +130,6 @@
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@ -100,7 +100,7 @@
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@ -163,6 +163,6 @@
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@ -76,7 +76,7 @@
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@ -119,6 +119,6 @@
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@ -70,7 +70,7 @@
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@ -108,6 +108,6 @@
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@ -70,7 +70,7 @@
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@ -108,6 +108,6 @@
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@ -76,7 +76,7 @@
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@ -119,6 +119,6 @@
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@ -70,7 +70,7 @@
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@ -108,6 +108,6 @@
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@ -64,7 +64,7 @@
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@ -97,6 +97,6 @@
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@ -82,7 +82,7 @@
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@ -130,6 +130,6 @@
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@ -84,7 +84,7 @@
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@ -142,6 +142,6 @@
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@ -78,7 +78,7 @@
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@ -131,6 +131,6 @@
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@ -100,7 +100,7 @@
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||||
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@ -163,6 +163,6 @@
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@ -75,7 +75,7 @@
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"version": "6.10-rc1",
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@ -113,6 +113,6 @@
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@ -84,7 +84,7 @@
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@ -142,6 +142,6 @@
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@ -58,7 +58,7 @@
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@ -86,6 +86,6 @@
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@ -70,7 +70,7 @@
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"version": "6.10-rc2",
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||||
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@ -108,6 +108,6 @@
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@ -76,7 +76,7 @@
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||||
"versionType": "original_commit_for_fix"
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@ -119,6 +119,6 @@
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@ -130,7 +130,7 @@
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@ -193,6 +193,6 @@
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@ -120,7 +120,7 @@
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"versionType": "original_commit_for_fix"
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@ -183,6 +183,6 @@
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@ -64,7 +64,7 @@
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||||
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@ -97,6 +97,6 @@
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@ -54,7 +54,7 @@
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"lessThanOrEqual": "*",
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"status": "unaffected",
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||||
"versionType": "original_commit_for_fix"
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@ -87,6 +87,6 @@
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@ -60,7 +60,7 @@
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"lessThanOrEqual": "*",
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@ -98,6 +98,6 @@
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@ -90,7 +90,7 @@
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"version": "6.10-rc1",
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"lessThanOrEqual": "*",
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||||
"versionType": "original_commit_for_fix"
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@ -153,6 +153,6 @@
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||||
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@ -76,7 +76,7 @@
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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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@ -119,6 +119,6 @@
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||||
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||||
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@ -78,7 +78,7 @@
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"version": "6.10-rc1",
|
||||
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|
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"lessThanOrEqual": "*",
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||||
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||||
"versionType": "original_commit_for_fix"
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@ -131,6 +131,6 @@
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||||
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@ -70,7 +70,7 @@
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"versionType": "custom"
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||||
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|
||||
{
|
||||
"version": "6.10-rc3",
|
||||
"version": "6.10",
|
||||
"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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@ -108,6 +108,6 @@
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||||
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|
||||
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@ -88,7 +88,7 @@
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"lessThanOrEqual": "*",
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||||
"status": "unaffected",
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"versionType": "original_commit_for_fix"
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@ -141,6 +141,6 @@
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||||
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||||
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@ -70,7 +70,7 @@
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"versionType": "custom"
|
||||
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||||
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|
||||
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|
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"lessThanOrEqual": "*",
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"status": "unaffected",
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@ -108,6 +108,6 @@
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@ -11,7 +11,7 @@
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|
||||
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/drm_file: Fix pid refcounting race\n\n\nfilp->pid is supposed to be a refcounted pointer; however, before this\npatch, drm_file_update_pid() only increments the refcount of a struct\npid after storing a pointer to it in filp->pid and dropping the\ndev->filelist_mutex, making the following race possible:\n\nprocess A process B\n========= =========\n begin drm_file_update_pid\n mutex_lock(&dev->filelist_mutex)\n rcu_replace_pointer(filp->pid, <pid B>, 1)\n mutex_unlock(&dev->filelist_mutex)\nbegin drm_file_update_pid\nmutex_lock(&dev->filelist_mutex)\nrcu_replace_pointer(filp->pid, <pid A>, 1)\nmutex_unlock(&dev->filelist_mutex)\nget_pid(<pid A>)\nsynchronize_rcu()\nput_pid(<pid B>) *** pid B reaches refcount 0 and is freed here ***\n get_pid(<pid B>) *** UAF ***\n synchronize_rcu()\n put_pid(<pid A>)\n\nAs far as I know, this race can only occur with CONFIG_PREEMPT_RCU=y\nbecause it requires RCU to detect a quiescent state in code that is not\nexplicitly calling into the scheduler.\n\nThis race leads to use-after-free of a \"struct pid\".\nIt is probably somewhat hard to hit because process A has to pass\nthrough a synchronize_rcu() operation while process B is between\nmutex_unlock() and get_pid().\n\nFix it by ensuring that by the time a pointer to the current task's pid\nis stored in the file, an extra reference to the pid has been taken.\n\nThis fix also removes the condition for synchronize_rcu(); I think\nthat optimization is unnecessary complexity, since in that case we\nwould usually have bailed out on the lockless check above."
|
||||
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/drm_file: Fix pid refcounting race\n\n<maarten.lankhorst@linux.intel.com>, Maxime Ripard\n<mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>\n\nfilp->pid is supposed to be a refcounted pointer; however, before this\npatch, drm_file_update_pid() only increments the refcount of a struct\npid after storing a pointer to it in filp->pid and dropping the\ndev->filelist_mutex, making the following race possible:\n\nprocess A process B\n========= =========\n begin drm_file_update_pid\n mutex_lock(&dev->filelist_mutex)\n rcu_replace_pointer(filp->pid, <pid B>, 1)\n mutex_unlock(&dev->filelist_mutex)\nbegin drm_file_update_pid\nmutex_lock(&dev->filelist_mutex)\nrcu_replace_pointer(filp->pid, <pid A>, 1)\nmutex_unlock(&dev->filelist_mutex)\nget_pid(<pid A>)\nsynchronize_rcu()\nput_pid(<pid B>) *** pid B reaches refcount 0 and is freed here ***\n get_pid(<pid B>) *** UAF ***\n synchronize_rcu()\n put_pid(<pid A>)\n\nAs far as I know, this race can only occur with CONFIG_PREEMPT_RCU=y\nbecause it requires RCU to detect a quiescent state in code that is not\nexplicitly calling into the scheduler.\n\nThis race leads to use-after-free of a \"struct pid\".\nIt is probably somewhat hard to hit because process A has to pass\nthrough a synchronize_rcu() operation while process B is between\nmutex_unlock() and get_pid().\n\nFix it by ensuring that by the time a pointer to the current task's pid\nis stored in the file, an extra reference to the pid has been taken.\n\nThis fix also removes the condition for synchronize_rcu(); I think\nthat optimization is unnecessary complexity, since in that case we\nwould usually have bailed out on the lockless check above."
|
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: fix slab-use-after-free in cachefiles_ondemand_get_fd()\n\nWe got the following issue in a fuzz test of randomly issuing the restore\ncommand:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in cachefiles_ondemand_daemon_read+0x609/0xab0\nWrite of size 4 at addr ffff888109164a80 by task ondemand-04-dae/4962\n\nCPU: 11 PID: 4962 Comm: ondemand-04-dae Not tainted 6.8.0-rc7-dirty #542\nCall Trace:\n kasan_report+0x94/0xc0\n cachefiles_ondemand_daemon_read+0x609/0xab0\n vfs_read+0x169/0xb50\n ksys_read+0xf5/0x1e0\n\nAllocated by task 626:\n __kmalloc+0x1df/0x4b0\n cachefiles_ondemand_send_req+0x24d/0x690\n cachefiles_create_tmpfile+0x249/0xb30\n cachefiles_create_file+0x6f/0x140\n cachefiles_look_up_object+0x29c/0xa60\n cachefiles_lookup_cookie+0x37d/0xca0\n fscache_cookie_state_machine+0x43c/0x1230\n [...]\n\nFreed by task 626:\n kfree+0xf1/0x2c0\n cachefiles_ondemand_send_req+0x568/0x690\n cachefiles_create_tmpfile+0x249/0xb30\n cachefiles_create_file+0x6f/0x140\n cachefiles_look_up_object+0x29c/0xa60\n cachefiles_lookup_cookie+0x37d/0xca0\n fscache_cookie_state_machine+0x43c/0x1230\n [...]\n==================================================================\n\nFollowing is the process that triggers the issue:\n\n mount | daemon_thread1 | daemon_thread2\n------------------------------------------------------------\n cachefiles_ondemand_init_object\n cachefiles_ondemand_send_req\n REQ_A = kzalloc(sizeof(*req) + data_len)\n wait_for_completion(&REQ_A->done)\n\n cachefiles_daemon_read\n cachefiles_ondemand_daemon_read\n REQ_A = cachefiles_ondemand_select_req\n cachefiles_ondemand_get_fd\n copy_to_user(_buffer, msg, n)\n process_open_req(REQ_A)\n ------ restore ------\n cachefiles_ondemand_restore\n xas_for_each(&xas, req, ULONG_MAX)\n xas_set_mark(&xas, CACHEFILES_REQ_NEW);\n\n cachefiles_daemon_read\n cachefiles_ondemand_daemon_read\n REQ_A = cachefiles_ondemand_select_req\n\n write(devfd, (\"copen %u,%llu\", msg->msg_id, size));\n cachefiles_ondemand_copen\n xa_erase(&cache->reqs, id)\n complete(&REQ_A->done)\n kfree(REQ_A)\n cachefiles_ondemand_get_fd(REQ_A)\n fd = get_unused_fd_flags\n file = anon_inode_getfile\n fd_install(fd, file)\n load = (void *)REQ_A->msg.data;\n load->fd = fd;\n // load UAF !!!\n\nThis issue is caused by issuing a restore command when the daemon is still\nalive, which results in a request being processed multiple times thus\ntriggering a UAF. So to avoid this problem, add an additional reference\ncount to cachefiles_req, which is held while waiting and reading, and then\nreleased when the waiting and reading is over.\n\nNote that since there is only one reference count for waiting, we need to\navoid the same request being completed multiple times, so we can only\ncomplete the request if it is successfully removed from the xarray."
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],
|
||||
"impact": {
|
||||
"cvss": [
|
||||
{
|
||||
"attackComplexity": "LOW",
|
||||
"attackVector": "NETWORK",
|
||||
"availabilityImpact": "HIGH",
|
||||
"baseScore": 9.8,
|
||||
"baseSeverity": "CRITICAL",
|
||||
"confidentialityImpact": "HIGH",
|
||||
"integrityImpact": "HIGH",
|
||||
"privilegesRequired": "NONE",
|
||||
"scope": "UNCHANGED",
|
||||
"userInteraction": "NONE",
|
||||
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
|
||||
"version": "3.1"
|
||||
}
|
||||
]
|
||||
}
|
||||
|
||||
18
2024/6xxx/CVE-2024-6745.json
Normal file
18
2024/6xxx/CVE-2024-6745.json
Normal file
@ -0,0 +1,18 @@
|
||||
{
|
||||
"data_type": "CVE",
|
||||
"data_format": "MITRE",
|
||||
"data_version": "4.0",
|
||||
"CVE_data_meta": {
|
||||
"ID": "CVE-2024-6745",
|
||||
"ASSIGNER": "cve@mitre.org",
|
||||
"STATE": "RESERVED"
|
||||
},
|
||||
"description": {
|
||||
"description_data": [
|
||||
{
|
||||
"lang": "eng",
|
||||
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
18
2024/6xxx/CVE-2024-6746.json
Normal file
18
2024/6xxx/CVE-2024-6746.json
Normal file
@ -0,0 +1,18 @@
|
||||
{
|
||||
"data_type": "CVE",
|
||||
"data_format": "MITRE",
|
||||
"data_version": "4.0",
|
||||
"CVE_data_meta": {
|
||||
"ID": "CVE-2024-6746",
|
||||
"ASSIGNER": "cve@mitre.org",
|
||||
"STATE": "RESERVED"
|
||||
},
|
||||
"description": {
|
||||
"description_data": [
|
||||
{
|
||||
"lang": "eng",
|
||||
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user