CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2021-47641 – video: fbdev: cirrusfb: check pixclock to avoid divide by zero
https://notcve.org/view.php?id=CVE-2021-47641
26 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: video: fbdev: cirrusfb: check pixclock to avoid divide by zero Do a sanity check on pixclock value to avoid divide by zero. If the pixclock value is zero, the cirrusfb driver will round up pixclock to get the derived frequency as close to maxclock as possible. Syzkaller reported a divide error in cirrusfb_check_pixclock. divide error: 0000 [#1] SMP KASAN PTI CPU: 0 PID: 14938 Comm: cirrusfb_test Not tainted 5.15.0-rc6 #1 Hardware name: QEMU... • https://git.kernel.org/stable/c/c656d04247a2654ede5cead2ecbf83431dad5261 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2021-47636 – ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock()
https://notcve.org/view.php?id=CVE-2021-47636
26 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock() Function ubifs_wbuf_write_nolock() may access buf out of bounds in following process: ubifs_wbuf_write_nolock(): aligned_len = ALIGN(len, 8); // Assume len = 4089, aligned_len = 4096 if (aligned_len <= wbuf->avail) ... // Not satisfy if (wbuf->used) { ubifs_leb_write() // Fill some data in avail wbuf len -= wbuf->avail; // len is still not 8-bytes aligned aligned_len -= wbuf->avail;... • https://git.kernel.org/stable/c/1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2021-47635 – ubifs: Fix to add refcount once page is set private
https://notcve.org/view.php?id=CVE-2021-47635
26 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix to add refcount once page is set private MM defined the rule [1] very clearly that once page was set with PG_private flag, we should increment the refcount in that page, also main flows like pageout(), migrate_page() will assume there is one additional page reference count if page_has_private() returns true. Otherwise, we may get a BUG in page migration: page:0000000080d05b9d refcount:-1 mapcount:0 mapping:000000005f4d82a8 index:... • https://git.kernel.org/stable/c/1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2021-47633 – ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111
https://notcve.org/view.php?id=CVE-2021-47633
26 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 The bug was found during fuzzing. Stacktrace locates it in ath5k_eeprom_convert_pcal_info_5111. When none of the curve is selected in the loop, idx can go up to AR5K_EEPROM_N_PD_CURVES. The line makes pd out of bound. pd = &chinfo[pier].pd_curves[idx]; There are many OOB writes using pd later in the code. So I added a sanity check for idx. Checks for other loops involving AR5K_EEPROM_N_PD_C... • https://git.kernel.org/stable/c/f4de974019a0adf34d0e7de6b86252f1bd266b06 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47632 – powerpc/set_memory: Avoid spinlock recursion in change_page_attr()
https://notcve.org/view.php?id=CVE-2021-47632
26 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: powerpc/set_memory: Avoid spinlock recursion in change_page_attr() Commit 1f9ad21c3b38 ("powerpc/mm: Implement set_memory() routines") included a spin_lock() to change_page_attr() in order to safely perform the three step operations. But then commit 9f7853d7609d ("powerpc/mm: Fix set_memory_*() against concurrent accesses") modify it to use pte_update() and do the operation safely against concurrent access. In the meantime, Maxime reported ... • https://git.kernel.org/stable/c/6def4eaf0391f24be541633a954c0e4876858b1e •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2025-21704 – usb: cdc-acm: Check control transfer buffer size before access
https://notcve.org/view.php?id=CVE-2025-21704
22 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: usb: cdc-acm: Check control transfer buffer size before access If the first fragment is shorter than struct usb_cdc_notification, we can't calculate an expected_size. Log an error and discard the notification instead of reading lengths from memory outside the received data, which can lead to memory corruption when the expected_size decreases between fragments, causing `expected_size - acm->nb_index` to wrap. This issue has been present sinc... • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2025-21700 – net: sched: Disallow replacing of child qdisc from one parent to another
https://notcve.org/view.php?id=CVE-2025-21700
13 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: net: sched: Disallow replacing of child qdisc from one parent to another Lion Ackermann was able to create a UAF which can be abused for privilege escalation with the following script Step 1. create root qdisc tc qdisc add dev lo root handle 1:0 drr step2. a class for packet aggregation do demonstrate uaf tc class add dev lo classid 1:1 drr step3. a class for nesting tc class add dev lo classid 1:2 drr step4. a class to graft qdisc to tc cl... • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 • CWE-416: Use After Free •
CVSS: 7.1EPSS: 0%CPEs: 8EXPL: 0CVE-2025-21699 – gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag
https://notcve.org/view.php?id=CVE-2025-21699
12 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag Truncate an inode's address space when flipping the GFS2_DIF_JDATA flag: depending on that flag, the pages in the address space will either use buffer heads or iomap_folio_state structs, and we cannot mix the two. In the Linux kernel, the following vulnerability has been resolved: gfs2: Truncate address space when flipping GFS2_DIF_JDATA flag Truncate an inode's address space wh... • https://git.kernel.org/stable/c/2b0bd5051ad1c1e9ef4879f18e15a7712c974f3e •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2025-21690 – scsi: storvsc: Ratelimit warning logs to prevent VM denial of service
https://notcve.org/view.php?id=CVE-2025-21690
10 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service If there's a persistent error in the hypervisor, the SCSI warning for failed I/O can flood the kernel log and max out CPU utilization, preventing troubleshooting from the VM side. Ratelimit the warning so it doesn't DoS the VM. In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service If there... • https://git.kernel.org/stable/c/81d4dd05c412ba04f9f6b85b718e6da833be290c •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2024-57950 – drm/amd/display: Initialize denominator defaults to 1
https://notcve.org/view.php?id=CVE-2024-57950
10 Feb 2025 — In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Initialize denominator defaults to 1 [WHAT & HOW] Variables, used as denominators and maybe not assigned to other values, should be initialized to non-zero to avoid DIVIDE_BY_ZERO, as reported by Coverity. (cherry picked from commit e2c4c6c10542ccfe4a0830bb6c9fd5b177b7bbb7) In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Initialize denominator defaults to 1 [WHAT & HOW] Variables, used a... • https://git.kernel.org/stable/c/c9d6afb4f9c338049662d27d169fba7dd60e337d •