CVE-2024-39301
9p: Uninitialized Data in client<p>
Description
In the Linux kernel, the following vulnerability has been resolved: net/9p: fix uninit-value in p9_client_rpc() Syzbot with the help of KMSAN reported the following error: BUG: KMSAN: uninit-value in trace_9p_client_res include/trace/events/9p.h:146 [inline] BUG: KMSAN: uninit-value in p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 trace_9p_client_res include/trace/events/9p.h:146 [inline] p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 Uninit was created at: __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2175 [inline] allocate_slab mm/slub.c:2338 [inline] new_slab+0x2de/0x1400 mm/slub.c:2391 ___slab_alloc+0x1184/0x33d0 mm/slub.c:3525 __slab_alloc mm/slub.c:3610 [inline] __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] kmem_cache_alloc+0x6d3/0xbe0 mm/slub.c:3852 p9_tag_alloc net/9p/client.c:278 [inline] p9_client_prepare_req+0x20a/0x1770 net/9p/client.c:641 p9_client_rpc+0x27e/0x1340 net/9p/client.c:688 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 If p9_check_errors() fails early in p9_client_rpc(), req->rc.tag will not be properly initialized. However, trace_9p_client_res() ends up trying to print it out anyway before p9_client_rpc() finishes. Fix this issue by assigning default values to p9_fcall fields such as 'tag' and (just in case KMSAN unearths something new) 'id' during the tag allocation stage.
INFO
Published Date :
June 25, 2024, 3:15 p.m.
Last Modified :
Nov. 21, 2024, 9:27 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
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CVE-2024-39301.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2024-39301 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-39301 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/124947855564572713d705a13be7d0c9dae16a17 Added Reference https://git.kernel.org/stable/c/2101901dd58c6da4924bc5efb217a1d83436290b Added Reference https://git.kernel.org/stable/c/25460d6f39024cc3b8241b14c7ccf0d6f11a736a Added Reference https://git.kernel.org/stable/c/6c1791130b781c843572fb6391c4a4c5d857ab17 Added Reference https://git.kernel.org/stable/c/72c5d8e416ecc46af370a1340b3db5ff0b0cc867 Added Reference https://git.kernel.org/stable/c/89969ffbeb948ffc159d19252e7469490103011b Added Reference https://git.kernel.org/stable/c/ca71f204711ad24113e8b344dc5bb8b0385f5672 Added Reference https://git.kernel.org/stable/c/fe5c604053c36c62af24eee8a76407d026ea5163 -
Initial Analysis by [email protected]
Sep. 03, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/124947855564572713d705a13be7d0c9dae16a17 No Types Assigned https://git.kernel.org/stable/c/124947855564572713d705a13be7d0c9dae16a17 Patch Changed Reference Type https://git.kernel.org/stable/c/2101901dd58c6da4924bc5efb217a1d83436290b No Types Assigned https://git.kernel.org/stable/c/2101901dd58c6da4924bc5efb217a1d83436290b Patch Changed Reference Type https://git.kernel.org/stable/c/25460d6f39024cc3b8241b14c7ccf0d6f11a736a No Types Assigned https://git.kernel.org/stable/c/25460d6f39024cc3b8241b14c7ccf0d6f11a736a Patch Changed Reference Type https://git.kernel.org/stable/c/6c1791130b781c843572fb6391c4a4c5d857ab17 No Types Assigned https://git.kernel.org/stable/c/6c1791130b781c843572fb6391c4a4c5d857ab17 Patch Changed Reference Type https://git.kernel.org/stable/c/72c5d8e416ecc46af370a1340b3db5ff0b0cc867 No Types Assigned https://git.kernel.org/stable/c/72c5d8e416ecc46af370a1340b3db5ff0b0cc867 Patch Changed Reference Type https://git.kernel.org/stable/c/89969ffbeb948ffc159d19252e7469490103011b No Types Assigned https://git.kernel.org/stable/c/89969ffbeb948ffc159d19252e7469490103011b Patch Changed Reference Type https://git.kernel.org/stable/c/ca71f204711ad24113e8b344dc5bb8b0385f5672 No Types Assigned https://git.kernel.org/stable/c/ca71f204711ad24113e8b344dc5bb8b0385f5672 Patch Changed Reference Type https://git.kernel.org/stable/c/fe5c604053c36c62af24eee8a76407d026ea5163 No Types Assigned https://git.kernel.org/stable/c/fe5c604053c36c62af24eee8a76407d026ea5163 Patch Added CWE NIST CWE-665 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.2 up to (excluding) 4.19.316 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.278 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.219 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.161 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.94 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.34 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.9.5 *cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:* -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net/9p: fix uninit-value in p9_client_rpc() Syzbot with the help of KMSAN reported the following error: BUG: KMSAN: uninit-value in trace_9p_client_res include/trace/events/9p.h:146 [inline] BUG: KMSAN: uninit-value in p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 trace_9p_client_res include/trace/events/9p.h:146 [inline] p9_client_rpc+0x1314/0x1340 net/9p/client.c:754 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 Uninit was created at: __alloc_pages+0x9d6/0xe70 mm/page_alloc.c:4598 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page mm/slub.c:2175 [inline] allocate_slab mm/slub.c:2338 [inline] new_slab+0x2de/0x1400 mm/slub.c:2391 ___slab_alloc+0x1184/0x33d0 mm/slub.c:3525 __slab_alloc mm/slub.c:3610 [inline] __slab_alloc_node mm/slub.c:3663 [inline] slab_alloc_node mm/slub.c:3835 [inline] kmem_cache_alloc+0x6d3/0xbe0 mm/slub.c:3852 p9_tag_alloc net/9p/client.c:278 [inline] p9_client_prepare_req+0x20a/0x1770 net/9p/client.c:641 p9_client_rpc+0x27e/0x1340 net/9p/client.c:688 p9_client_create+0x1551/0x1ff0 net/9p/client.c:1031 v9fs_session_init+0x1b9/0x28e0 fs/9p/v9fs.c:410 v9fs_mount+0xe2/0x12b0 fs/9p/vfs_super.c:122 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1797 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 do_syscall_64+0xd5/0x1f0 entry_SYSCALL_64_after_hwframe+0x6d/0x75 If p9_check_errors() fails early in p9_client_rpc(), req->rc.tag will not be properly initialized. However, trace_9p_client_res() ends up trying to print it out anyway before p9_client_rpc() finishes. Fix this issue by assigning default values to p9_fcall fields such as 'tag' and (just in case KMSAN unearths something new) 'id' during the tag allocation stage. Added Reference kernel.org https://git.kernel.org/stable/c/72c5d8e416ecc46af370a1340b3db5ff0b0cc867 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2101901dd58c6da4924bc5efb217a1d83436290b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/124947855564572713d705a13be7d0c9dae16a17 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/89969ffbeb948ffc159d19252e7469490103011b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ca71f204711ad24113e8b344dc5bb8b0385f5672 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/6c1791130b781c843572fb6391c4a4c5d857ab17 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/fe5c604053c36c62af24eee8a76407d026ea5163 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/25460d6f39024cc3b8241b14c7ccf0d6f11a736a [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-39301 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-39301
weaknesses.