CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2022-48869 – USB: gadgetfs: Fix race between mounting and unmounting
https://notcve.org/view.php?id=CVE-2022-48869
In the Linux kernel, the following vulnerability has been resolved: USB: gadgetfs: Fix race between mounting and unmounting The syzbot fuzzer and Gerald Lee have identified a use-after-free bug in the gadgetfs driver, involving processes concurrently mounting and unmounting the gadgetfs filesystem. ... The output from KASAN says, in part: BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:102 [inline] BUG: KASAN: use-after-free in atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:176 [inline] BUG: KASAN: use-after-free in __refcount_sub_and_test include/linux/refcount.h:272 [inline] BUG: KASAN: use-after-free in __refcount_dec_and_test include/linux/refcount.h:315 [inline] BUG: KASAN: use-after-free in refcount_dec_and_test include/linux/refcount.h:333 [inline] BUG: KASAN: use-after-free in put_dev drivers/usb/gadget/legacy/inode.c:159 [inline] BUG: KASAN: use-after-free in gadgetfs_kill_sb+0x33/0x100 drivers/usb/gadget/legacy/inode.c:2086 Write of size 4 at addr ffff8880276d7840 by task syz-executor126/18689 CPU: 0 PID: 18689 Comm: syz-executor126 Not tainted 6.1.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: <TASK> ... atomic_fetch_sub_release include/linux/atomic/atomic-instrumented.h:176 [inline] __refcount_sub_and_test include/linux/refcount.h:272 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] put_dev drivers/usb/gadget/legacy/inode.c:159 [inline] gadgetfs_kill_sb+0x33/0x100 drivers/usb/gadget/legacy/inode.c:2086 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 vfs_get_super fs/super.c:1190 [inline] get_tree_single+0xd0/0x160 fs/super.c:1207 vfs_get_tree+0x88/0x270 fs/super.c:1531 vfs_fsconfig_locked fs/fsopen.c:232 [inline] The simplest solution is to ensure that gadgetfs_fill_super() and gadgetfs_kill_sb() are serialized by making them both acquire a new mutex. • https://git.kernel.org/stable/c/e5d82a7360d124ae1a38c2a5eac92ba49b125191 https://git.kernel.org/stable/c/9a39f4626b361ee7aa10fd990401c37ec3b466ae https://git.kernel.org/stable/c/856e4b5e53f21edbd15d275dde62228dd94fb2b4 https://git.kernel.org/stable/c/a2e075f40122d8daf587db126c562a67abd69cf9 https://git.kernel.org/stable/c/616fd34d017000ecf9097368b13d8a266f4920b3 https://git.kernel.org/stable/c/d18dcfe9860e842f394e37ba01ca9440ab2178f4 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2022-48868 – dmaengine: idxd: Let probe fail when workqueue cannot be enabled
https://notcve.org/view.php?id=CVE-2022-48868
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Let probe fail when workqueue cannot be enabled The workqueue is enabled when the appropriate driver is loaded and disabled when the driver is removed. • https://git.kernel.org/stable/c/1f2bb40337f0df1d9af80793e9fdacff7706e654 https://git.kernel.org/stable/c/0f150134dd795ffcd60b798a85ab737d8d010fb7 https://git.kernel.org/stable/c/99dc4520b74e7ca8e9dc9abe37a0b10b49467960 https://git.kernel.org/stable/c/b51b75f0604f17c0f6f3b6f68f1a521a5cc6b04f •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2022-48867 – dmaengine: idxd: Prevent use after free on completion memory
https://notcve.org/view.php?id=CVE-2022-48867
In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Prevent use after free on completion memory On driver unload any pending descriptors are flushed at the time the interrupt is freed: idxd_dmaengine_drv_remove() -> drv_disable_wq() -> idxd_wq_free_irq() -> idxd_flush_pending_descs(). If there are any descriptors present that need to be flushed this flow triggers a "not present" page fault as below: BUG: unable to handle page fault for address: ff391c97c70c9040 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page The address that triggers the fault is the address of the descriptor that was freed moments earlier via: drv_disable_wq()->idxd_wq_free_resources() Fix the use after free by freeing the descriptors after any possible usage. • https://git.kernel.org/stable/c/63c14ae6c161dec8ff3be49277edc75a769e054a https://git.kernel.org/stable/c/b9e8e3fcfec625fc1c2f68f684448aeeb882625b https://git.kernel.org/stable/c/1beeec45f9ac31eba52478379f70a5fa9c2ad005 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-43882 – exec: Fix ToCToU between perm check and set-uid/gid usage
https://notcve.org/view.php?id=CVE-2024-43882
In the Linux kernel, the following vulnerability has been resolved: exec: Fix ToCToU between perm check and set-uid/gid usage When opening a file for exec via do_filp_open(), permission checking is done against the file's metadata at that moment, and on success, a file pointer is passed back. • https://git.kernel.org/stable/c/d5c3c7e26275a2d83b894d30f7582a42853a958f https://git.kernel.org/stable/c/368f6985d46657b8b466a421dddcacd4051f7ada https://git.kernel.org/stable/c/15469d46ba34559bfe7e3de6659115778c624759 https://git.kernel.org/stable/c/9b424c5d4130d56312e2a3be17efb0928fec4d64 https://git.kernel.org/stable/c/f6cfc6bcfd5e1cf76115b6450516ea4c99897ae1 https://git.kernel.org/stable/c/d2a2a4714d80d09b0f8eb6438ab4224690b7121e https://git.kernel.org/stable/c/90dfbba89ad4f0d9c9744ecbb1adac4aa2ff4f3e https://git.kernel.org/stable/c/f50733b45d865f91db90919f8311e2127 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-43881 – wifi: ath12k: change DMA direction while mapping reinjected packets
https://notcve.org/view.php?id=CVE-2024-43881
In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: change DMA direction while mapping reinjected packets For fragmented packets, ath12k reassembles each fragment as a normal packet and then reinjects it into HW ring. • https://git.kernel.org/stable/c/d889913205cf7ebda905b1e62c5867ed4e39f6c2 https://git.kernel.org/stable/c/e99d9b16ff153de9540073239d24adc3b0a3a997 https://git.kernel.org/stable/c/6925320fcd40d8042d32bf4ede8248e7a5315c3b https://git.kernel.org/stable/c/33322e3ef07409278a18c6919c448e369d66a18e •