CVE-2024-26875
media: pvrusb2: fix uaf in pvr2_context_set_notify
Description
In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix uaf in pvr2_context_set_notify [Syzbot reported] BUG: KASAN: slab-use-after-free in pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35 Read of size 4 at addr ffff888113aeb0d8 by task kworker/1:1/26 CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: usb_hub_wq hub_event Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report+0xda/0x110 mm/kasan/report.c:601 pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35 pvr2_context_notify drivers/media/usb/pvrusb2/pvrusb2-context.c:95 [inline] pvr2_context_disconnect+0x94/0xb0 drivers/media/usb/pvrusb2/pvrusb2-context.c:272 Freed by task 906: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640 poison_slab_object mm/kasan/common.c:241 [inline] __kasan_slab_free+0x106/0x1b0 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x105/0x340 mm/slub.c:4409 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline] pvr2_context_thread_func+0x69d/0x960 drivers/media/usb/pvrusb2/pvrusb2-context.c:158 [Analyze] Task A set disconnect_flag = !0, which resulted in Task B's condition being met and releasing mp, leading to this issue. [Fix] Place the disconnect_flag assignment operation after all code in pvr2_context_disconnect() to avoid this issue.
INFO
Published Date :
April 17, 2024, 11:15 a.m.
Last Modified :
March 21, 2025, 3:27 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update the Linux kernel to address the vulnerability.
- Reboot the system after the kernel update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-26875.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-26875 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-2024-26875
weaknesses.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-26875 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-26875 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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Initial Analysis by [email protected]
Mar. 21, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.7.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.23 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.83 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.153 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.214 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.273 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.26 up to (excluding) 4.19.311 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.8 up to (excluding) 6.8.2 Added Reference Type CVE: https://git.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c Types: Patch Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Types: Mailing List, Third Party Advisory Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Types: Mailing List, Third Party Advisory -
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/0a0b79ea55de8514e1750884e5fec77f9fdd01ee Added Reference https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475 Added Reference https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a Added Reference https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592 Added Reference https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f Added Reference https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb Added Reference https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16 Added Reference https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7 Added Reference https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 05, 2024
Action Type Old Value New Value Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 08, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-416 Added CVSS V3.1 CISA-ADP AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 27, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 17, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix uaf in pvr2_context_set_notify [Syzbot reported] BUG: KASAN: slab-use-after-free in pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35 Read of size 4 at addr ffff888113aeb0d8 by task kworker/1:1/26 CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: usb_hub_wq hub_event Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc4/0x620 mm/kasan/report.c:488 kasan_report+0xda/0x110 mm/kasan/report.c:601 pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35 pvr2_context_notify drivers/media/usb/pvrusb2/pvrusb2-context.c:95 [inline] pvr2_context_disconnect+0x94/0xb0 drivers/media/usb/pvrusb2/pvrusb2-context.c:272 Freed by task 906: kasan_save_stack+0x33/0x50 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3f/0x60 mm/kasan/generic.c:640 poison_slab_object mm/kasan/common.c:241 [inline] __kasan_slab_free+0x106/0x1b0 mm/kasan/common.c:257 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2121 [inline] slab_free mm/slub.c:4299 [inline] kfree+0x105/0x340 mm/slub.c:4409 pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:137 [inline] pvr2_context_thread_func+0x69d/0x960 drivers/media/usb/pvrusb2/pvrusb2-context.c:158 [Analyze] Task A set disconnect_flag = !0, which resulted in Task B's condition being met and releasing mp, leading to this issue. [Fix] Place the disconnect_flag assignment operation after all code in pvr2_context_disconnect() to avoid this issue. Added Reference kernel.org https://git.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fb [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee [No types assigned]