CVE-2024-57902: af_packet: fix vlan_get_tci() vs MSG_PEEK
First published: Wed Jan 15 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: af_packet: fix vlan_get_tci() vs MSG_PEEK Blamed commit forgot MSG_PEEK case, allowing a crash [1] as found by syzbot. Rework vlan_get_tci() to not touch skb at all, so that it can be used from many cpus on the same skb. Add a const qualifier to skb argument. [1] skbuff: skb_under_panic: text:ffffffff8a8da482 len:32 put:14 head:ffff88807a1d5800 data:ffff88807a1d5810 tail:0x14 end:0x140 dev:<NULL> ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:206 ! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 5880 Comm: syz-executor172 Not tainted 6.13.0-rc3-syzkaller-00762-g9268abe611b0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:skb_panic net/core/skbuff.c:206 [inline] RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:216 Code: 0b 8d 48 c7 c6 9e 6c 26 8e 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 3a 5a 79 f7 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc90003baf5b8 EFLAGS: 00010286 RAX: 0000000000000087 RBX: dffffc0000000000 RCX: 8565c1eec37aa000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88802616fb50 R08: ffffffff817f0a4c R09: 1ffff92000775e50 R10: dffffc0000000000 R11: fffff52000775e51 R12: 0000000000000140 R13: ffff88807a1d5800 R14: ffff88807a1d5810 R15: 0000000000000014 FS: 00007fa03261f6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd65753000 CR3: 0000000031720000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> skb_push+0xe5/0x100 net/core/skbuff.c:2636 vlan_get_tci+0x272/0x550 net/packet/af_packet.c:565 packet_recvmsg+0x13c9/0x1ef0 net/packet/af_packet.c:3616 sock_recvmsg_nosec net/socket.c:1044 [inline] sock_recvmsg+0x22f/0x280 net/socket.c:1066 ____sys_recvmsg+0x1c6/0x480 net/socket.c:2814 ___sys_recvmsg net/socket.c:2856 [inline] do_recvmmsg+0x426/0xab0 net/socket.c:2951 __sys_recvmmsg net/socket.c:3025 [inline] __do_sys_recvmmsg net/socket.c:3048 [inline] __se_sys_recvmmsg net/socket.c:3041 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3041 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Kernel-devel | ||
| Linux Kernel | >=4.19.320<4.20 | |
| Linux Kernel | >=5.4.282<5.4.289 | |
| Linux Kernel | >=5.10.224<5.10.233 | |
| Linux Kernel | >=5.15.165<5.15.176 | |
| Linux Kernel | >=6.1.103<6.1.124 | |
| Linux Kernel | >=6.6.44<6.6.70 | |
| Linux Kernel | >=6.10.3<6.12.9 | |
| Linux Kernel | =6.13-rc1 | |
| Linux Kernel | =6.13-rc2 | |
| Linux Kernel | =6.13-rc3 | |
| Linux Kernel | =6.13-rc4 | |
| Linux Kernel | =6.13-rc5 | |
| debian/linux | <=5.10.223-1 | 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/66ffb0cf2125dcf9e902eede4a43653a24fd9cb2
- https://git.kernel.org/stable/c/fa57f07ba0622c8692f40e1300adca59277b0044
- https://git.kernel.org/stable/c/65c67049e9ed481f6b52264b39618b8c6dfb1d3e
- https://git.kernel.org/stable/c/d91b4a9baa018a001d5c884e236c0cfd31f9f4a1
- https://git.kernel.org/stable/c/7aa78d0d8546d8ce5a764add3f55d72e707c18f1
- https://git.kernel.org/stable/c/b65292a548d847099a4fe0fff53122a06e798e25
- https://git.kernel.org/stable/c/77ee7a6d16b6ec07b5c3ae2b6b60a24c1afbed09
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-57902
- https://nvd.nist.gov/vuln/detail/CVE-2024-57902
- https://launchpad.net/bugs/cve/CVE-2024-57902
- https://security-tracker.debian.org/tracker/CVE-2024-57902
- https://ubuntu.com/security/CVE-2024-57902
- https://git.kernel.org/linus/77ee7a6d16b6ec07b5c3ae2b6b60a24c1afbed09
Frequently Asked Questions
What is the severity of CVE-2024-57902?
CVE-2024-57902 has been classified with a severity that could potentially lead to system crashes.
How do I fix CVE-2024-57902?
To fix CVE-2024-57902, you should update to the latest version of the Linux Kernel that includes the patch for this vulnerability.
What causes CVE-2024-57902?
CVE-2024-57902 is caused by a flaw in the af_packet implementation of the Linux kernel that mishandles the MSG_PEEK case, leading to a potential crash.
Which systems are affected by CVE-2024-57902?
CVE-2024-57902 affects systems running vulnerable versions of the Linux Kernel.
Is there a workaround for CVE-2024-57902?
There is no officially recommended workaround for CVE-2024-57902; updating the Linux kernel is the best way to mitigate the issue.
- agent/title
- agent/type
- agent/first-publish-date
- agent/author
- collector/mitre-cve
- source/MITRE
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- agent/remedy
- agent/severity
- collector/usn-cve
- source/Ubuntu
- collector/launchpad-cve
- source/Launchpad
- agent/references
- agent/source
- agent/tags
- agent/description
- agent/softwarecombine
- agent/event
- collector/nvd-cve
- collector/security-tracker-debian
- source/Debian
- vendor/linux
- canonical/red hat kernel-devel
- canonical/linux kernel
- version/linux kernel/4.19.320
- version/linux kernel/5.4.282
- version/linux kernel/5.10.224
- version/linux kernel/5.15.165
- version/linux kernel/6.1.103
- version/linux kernel/6.6.44
- version/linux kernel/6.10.3
- version/linux kernel/6.13-rc1
- version/linux kernel/6.13-rc2
- version/linux kernel/6.13-rc3
- version/linux kernel/6.13-rc4
- version/linux kernel/6.13-rc5
- package-manager/debian