cbcvebase.
CVE-2024-57834
published 2025-02-27

CVE-2024-57834: In the Linux kernel, the following vulnerability has been resolved: media: vidtv: Fix a null-ptr-deref in vidtv_mux_stop_thread syzbot report a null-ptr-deref…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
12.7th percentile
In the Linux kernel, the following vulnerability has been resolved: media: vidtv: Fix a null-ptr-deref in vidtv_mux_stop_thread syzbot report a null-ptr-deref in vidtv_mux_stop_thread. [1] If dvb->mux is not initialized successfully by vidtv_mux_init() in the vidtv_start_streaming(), it will trigger null pointer dereference about mux in vidtv_mux_stop_thread(). Adjust the timing of streaming initialization and check it before stopping it. [1] KASAN: null-ptr-deref in range [0x0000000000000128-0x000000000000012f] CPU: 0 UID: 0 PID: 5842 Comm: syz-executor248 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:vidtv_mux_stop_thread+0x26/0x80 drivers/media/test-drivers/vidtv/vidtv_mux.c:471 Code: 90 90 90 90 66 0f 1f 00 55 53 48 89 fb e8 82 2e c8 f9 48 8d bb 28 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 b6 04 02 84 c0 74 02 7e 3b 0f b6 ab 28 01 00 00 31 ff 89 ee e8 RSP: 0018:ffffc90003f2faa8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87cfb125 RDX: 0000000000000025 RSI: ffffffff87d120ce RDI: 0000000000000128 RBP: ffff888029b8d220 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000003 R12: ffff888029b8d188 R13: ffffffff8f590aa0 R14: ffffc9000581c5c8 R15: ffff888029a17710 FS: 00007f7eef5156c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7eef5e635c CR3: 0000000076ca6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vidtv_stop_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:209 [inline] vidtv_stop_feed+0x151/0x250 drivers/media/test-drivers/vidtv/vidtv_bridge.c:252 dmx_section_feed_stop_filtering+0x90/0x160 drivers/media/dvb-core/dvb_demux.c:1000 dvb_dmxdev_feed_stop.isra.0+0x1ee/0x270 driv

Affected

24 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.129-1 (bookworm)linux 6.1.129-1 (bookworm)
debianlinux-6.1< linux 6.1.129-1 (bookworm)linux 6.1.129-1 (bookworm)
linuxlinux
linuxlinux>= f90cf6079bf67988f8b1ad1ade70fc89d0080905 < 52d3512f9a7a52ef92864679b1e8e8aa16202c6a52d3512f9a7a52ef92864679b1e8e8aa16202c6a
linuxlinux>= f90cf6079bf67988f8b1ad1ade70fc89d0080905 < 59a707ad952eb2ea8d59457d662b6f4138f17b0859a707ad952eb2ea8d59457d662b6f4138f17b08
linuxlinux>= f90cf6079bf67988f8b1ad1ade70fc89d0080905 < 86307e443c5844f38e1b98e2c51a4195c55576cd86307e443c5844f38e1b98e2c51a4195c55576cd
linuxlinux>= f90cf6079bf67988f8b1ad1ade70fc89d0080905 < 2c5601b99d79d196fe4a37159e3dfb38e778ea182c5601b99d79d196fe4a37159e3dfb38e778ea18
linuxlinux>= f90cf6079bf67988f8b1ad1ade70fc89d0080905 < 95432a37778c9c5dd105b7b9f19e9695c9e166cf95432a37778c9c5dd105b7b9f19e9695c9e166cf
linuxlinux>= f90cf6079bf67988f8b1ad1ade70fc89d0080905 < 904a8323cc8afa7eb9ce3e67303a2b3f2f787306904a8323cc8afa7eb9ce3e67303a2b3f2f787306
linuxlinux>= f90cf6079bf67988f8b1ad1ade70fc89d0080905 < 1221989555db711578a327a9367f1be46500cb481221989555db711578a327a9367f1be46500cb48
linuxlinux_kernel< 6.1.1296.1.129
linuxlinux_kernel>= 0 < 5.10.237-15.10.237-1
linuxlinux_kernel>= 0 < 6.1.129-16.1.129-1
linuxlinux_kernel>= 0 < 6.12.16-16.12.16-1
linuxlinux_kernel>= 0 < 6.12.16-16.12.16-1
linuxlinux_kernel>= 0 < 5.15.0-140.1505.15.0-140.150
linuxlinux_kernel>= 0 < 6.8.0-78.786.8.0-78.78
linuxlinux_kernel>= 6.13 < 6.13.46.13.4
linuxlinux_kernel>= 6.2 < 6.6.796.6.79
linuxlinux_kernel>= 6.7 < 6.12.166.12.16
msrcazl3_kernel_6.6.78.1-3_on_azure_linux_3.0
msrcazl3_kernel_6.6.79.1-1_on_azure_linux_3.0
msrccbl2_kernel_5.15.179.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.182.1-1_on_cbl_mariner_2.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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