CVE-2022-49307
tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes. The following security bugs were fixed.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2025-02-26 CVE Reserved
- 2025-02-26 CVE Published
- 2026-04-06 EPSS Updated
- 2026-05-11 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/705b6c7b34f2621f95f606d0e683daa10cdb8eb9 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.16 < 4.9.318 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.16 < 4.9.318" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.16 < 4.14.283 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.16 < 4.14.283" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.16 < 4.19.247 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.16 < 4.19.247" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.16 < 5.4.198 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.16 < 5.4.198" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.16 < 5.10.122 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.16 < 5.10.122" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.16 < 5.15.47 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.16 < 5.15.47" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.16 < 5.17.15 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.16 < 5.17.15" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.16 < 5.18.4 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.16 < 5.18.4" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 2.6.16 < 5.19 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.16 < 5.19" | en |
Affected
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