CVE-2022-49307

Katalog CVE

CVSS 5.5 · Medium EPSS 0,29%

Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: tty: synclink_gt: Fix null-pointer-dereference in slgt_clean() When the driver fails at alloc_hdlcdev(), and then we remove the driver module, we will get the following splat: [ 25.065966] general protection fault, probably for non-canonical address 0xdffffc0000000182: 0000 [#1] PREEMPT SMP KASAN PTI [ 25.066914] KASAN: null-ptr-deref in range [0x0000000000000c10-0x0000000000000c17] [ 25.069262] RIP: 0010:detach_hdlc_protocol+0x2a/0x3e0 [ 25.077709] Call Trace: [ 25.077924] <TASK> [ 25.078108] unregister_hdlc_device+0x16/0x30 [ 25.078481] slgt_cleanup+0x157/0x9f0 [synclink_gt] Fix this by checking whether the 'info->netdev' is a null pointer first.

Rincian

Terbit di NVD

26 Februari 2025

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,29% peluang dieksploitasi; lebih tinggi dari 20,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/078212ad15dbd88840c82c97f12c93d83703c8fd patch
• https://git.kernel.org/stable/c/1ceb4ca9543a8a788febf6bc8dad2e605e172d5e patch
• https://git.kernel.org/stable/c/50c341f9a2adc4c32a8ad5a39eb99d9c4a419e0d patch
• https://git.kernel.org/stable/c/689ca31c542687709ba21ec2195c1fbce34fd029 patch
• https://git.kernel.org/stable/c/8a95696bdc0e13f8980f05b54a3b9081963d1256 patch
• https://git.kernel.org/stable/c/ba08cbc5b53e151d0acf1930fb526fc65b7f3e65 patch
• https://git.kernel.org/stable/c/d68d5e68b7f64de7170f8e04dd9b995c36b2c71c patch
• https://git.kernel.org/stable/c/ddd67751ab86c6a65f95c35293c42f85a42ac05d patch
• https://git.kernel.org/stable/c/f6e07eb7ebec53ffe81fc2489589320fbe4a6b75 patch