CVE-2022-50010
published 2025-06-18CVE-2022-50010: In the Linux kernel, the following vulnerability has been resolved: video: fbdev: i740fb: Check the argument of i740_calc_vclk() Since the user can control the…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
11.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
video: fbdev: i740fb: Check the argument of i740_calc_vclk()
Since the user can control the arguments of the ioctl() from the user
space, under special arguments that may result in a divide-by-zero bug.
If the user provides an improper 'pixclock' value that makes the argumet
of i740_calc_vclk() less than 'I740_RFREQ_FIX', it will cause a
divide-by-zero bug in:
drivers/video/fbdev/i740fb.c:353 p_best = min(15, ilog2(I740_MAX_VCO_FREQ / (freq / I740_RFREQ_FIX)));
The following log can reveal it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:i740_calc_vclk drivers/video/fbdev/i740fb.c:353 [inline]
RIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:646 [inline]
RIP: 0010:i740fb_set_par+0x163f/0x3b70 drivers/video/fbdev/i740fb.c:742
Call Trace:
fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1034
do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1110
fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1189
Fix this by checking the argument of i740_calc_vclk() first.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.2-1 (bookworm) | linux 6.0.2-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 5350c65f4f15bbc111ffa629130d3f32cdd4ccf6 < 59cefb583c984c0da8cf21a4c57d26d5a20dff5c | 59cefb583c984c0da8cf21a4c57d26d5a20dff5c |
| linux | linux | >= 5350c65f4f15bbc111ffa629130d3f32cdd4ccf6 < 656689cb03ada4650016c153346939a1c334b1ae | 656689cb03ada4650016c153346939a1c334b1ae |
| linux | linux | >= 5350c65f4f15bbc111ffa629130d3f32cdd4ccf6 < d2d375eb68b4b8de6ea7460483a26fa9de56b443 | d2d375eb68b4b8de6ea7460483a26fa9de56b443 |
| linux | linux | >= 5350c65f4f15bbc111ffa629130d3f32cdd4ccf6 < 2b7f559152a33c55f51b569b22efbe5e24886798 | 2b7f559152a33c55f51b569b22efbe5e24886798 |
| linux | linux | >= 5350c65f4f15bbc111ffa629130d3f32cdd4ccf6 < 4b20c61365140d432dee7da7aa294215e7b900d9 | 4b20c61365140d432dee7da7aa294215e7b900d9 |
| linux | linux | >= 5350c65f4f15bbc111ffa629130d3f32cdd4ccf6 < e740e787f06671455b59d1e498c9945f7b4e7b3b | e740e787f06671455b59d1e498c9945f7b4e7b3b |
| linux | linux | >= 5350c65f4f15bbc111ffa629130d3f32cdd4ccf6 < f350812e2d15278f1d867eeb997407782234fb3c | f350812e2d15278f1d867eeb997407782234fb3c |
| linux | linux | >= 5350c65f4f15bbc111ffa629130d3f32cdd4ccf6 < 40bf722f8064f50200b8c4f8946cd625b441dda9 | 40bf722f8064f50200b8c4f8946cd625b441dda9 |
| linux | linux_kernel | < 4.9.326 | 4.9.326 |
| linux | linux_kernel | >= 0 < 5.10.140-1 | 5.10.140-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 4.10 < 4.14.291 | 4.14.291 |
| linux | linux_kernel | >= 4.15 < 4.19.256 | 4.19.256 |
| linux | linux_kernel | >= 4.20 < 5.4.211 | 5.4.211 |
| linux | linux_kernel | >= 5.11 < 5.15.63 | 5.15.63 |
| linux | linux_kernel | >= 5.16 < 5.19.4 | 5.19.4 |
| linux | linux_kernel | >= 5.5 < 5.10.138 | 5.10.138 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-9mwp-3938-cj9r: In the Linux kernel, the following vulnerability has been resolved:
video: fbdev: i740fb: Check the argument of i740_calc_vclk()
Since the user can
ghsa_unreviewed·2025-06-18
CVE-2022-50010 [MEDIUM] CWE-369 GHSA-9mwp-3938-cj9r: In the Linux kernel, the following vulnerability has been resolved:
video: fbdev: i740fb: Check the argument of i740_calc_vclk()
Since the user can
In the Linux kernel, the following vulnerability has been resolved:
video: fbdev: i740fb: Check the argument of i740_calc_vclk()
Since the user can control the arguments of the ioctl() from the user
space, under special arguments that may result in a divide-by-zero bug.
If the user provides an improper 'pixclock' value that makes the argumet
of i740_calc_vclk() less than 'I740_RFREQ_FIX', it will cause a
divide-by-zero bug in:
drivers/video/fbdev/i740fb.c:353 p_best = min(15, ilog2(I740_MAX_VCO_FREQ / (freq / I740_RFREQ_FIX)));
The following log can reveal it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:i740_calc_vclk drivers/video/fbdev/i740fb.c:353 [inline]
RIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:646 [inline]
RIP: 0010:i740fb_set_par+0x163f/0x3b70 driver
OSV
CVE-2022-50010: In the Linux kernel, the following vulnerability has been resolved: video: fbdev: i740fb: Check the argument of i740_calc_vclk() Since the user can co
osv·2025-06-18·CVSS 5.5
CVE-2022-50010 [MEDIUM] CVE-2022-50010: In the Linux kernel, the following vulnerability has been resolved: video: fbdev: i740fb: Check the argument of i740_calc_vclk() Since the user can co
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: i740fb: Check the argument of i740_calc_vclk() Since the user can control the arguments of the ioctl() from the user space, under special arguments that may result in a divide-by-zero bug. If the user provides an improper 'pixclock' value that makes the argumet of i740_calc_vclk() less than 'I740_RFREQ_FIX', it will cause a divide-by-zero bug in: drivers/video/fbdev/i740fb.c:353 p_best = min(15, ilog2(I740_MAX_VCO_FREQ / (freq / I740_RFREQ_FIX))); The following log can reveal it: divide error: 0000 [#1] PREEMPT SMP KASAN PTI RIP: 0010:i740_calc_vclk drivers/video/fbdev/i740fb.c:353 [inline] RIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:646 [inline] RIP: 0010:i740fb_set_par+0x163f/0x3b70 drivers/vid
Red Hat
kernel: video: fbdev: i740fb: Check the argument of i740_calc_vclk()
vendor_redhat·2025-06-18·CVSS 5.5
CVE-2022-50010 [MEDIUM] kernel: video: fbdev: i740fb: Check the argument of i740_calc_vclk()
kernel: video: fbdev: i740fb: Check the argument of i740_calc_vclk()
In the Linux kernel, the following vulnerability has been resolved:
video: fbdev: i740fb: Check the argument of i740_calc_vclk()
Since the user can control the arguments of the ioctl() from the user
space, under special arguments that may result in a divide-by-zero bug.
If the user provides an improper 'pixclock' value that makes the argumet
of i740_calc_vclk() less than 'I740_RFREQ_FIX', it will cause a
divide-by-zero bug in:
drivers/video/fbdev/i740fb.c:353 p_best = min(15, ilog2(I740_MAX_VCO_FREQ / (freq / I740_RFREQ_FIX)));
The following log can reveal it:
divide error: 0000 [#1] PREEMPT SMP KASAN PTI
RIP: 0010:i740_calc_vclk drivers/video/fbdev/i740fb.c:353 [inline]
RIP: 0010:i740fb_decode_var drivers/video/fbdev/i7
Debian
CVE-2022-50010: linux - In the Linux kernel, the following vulnerability has been resolved: video: fbde...
vendor_debian·2022·CVSS 5.5
CVE-2022-50010 [MEDIUM] CVE-2022-50010: linux - In the Linux kernel, the following vulnerability has been resolved: video: fbde...
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: i740fb: Check the argument of i740_calc_vclk() Since the user can control the arguments of the ioctl() from the user space, under special arguments that may result in a divide-by-zero bug. If the user provides an improper 'pixclock' value that makes the argumet of i740_calc_vclk() less than 'I740_RFREQ_FIX', it will cause a divide-by-zero bug in: drivers/video/fbdev/i740fb.c:353 p_best = min(15, ilog2(I740_MAX_VCO_FREQ / (freq / I740_RFREQ_FIX))); The following log can reveal it: divide error: 0000 [#1] PREEMPT SMP KASAN PTI RIP: 0010:i740_calc_vclk drivers/video/fbdev/i740fb.c:353 [inline] RIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:646 [inline] RIP: 0010:i740fb_set_par+0x163f/0x3b70 drivers/vid
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/2b7f559152a33c55f51b569b22efbe5e24886798https://git.kernel.org/stable/c/40bf722f8064f50200b8c4f8946cd625b441dda9https://git.kernel.org/stable/c/4b20c61365140d432dee7da7aa294215e7b900d9https://git.kernel.org/stable/c/59cefb583c984c0da8cf21a4c57d26d5a20dff5chttps://git.kernel.org/stable/c/656689cb03ada4650016c153346939a1c334b1aehttps://git.kernel.org/stable/c/d2d375eb68b4b8de6ea7460483a26fa9de56b443https://git.kernel.org/stable/c/e740e787f06671455b59d1e498c9945f7b4e7b3bhttps://git.kernel.org/stable/c/f350812e2d15278f1d867eeb997407782234fb3c
2025-06-18
Published