CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0CVE-2024-35789 – wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes
https://notcve.org/view.php?id=CVE-2024-35789
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes When moving a station out of a VLAN and deleting the VLAN afterwards, the fast_rx entry still holds a pointer to the VLAN's netdev, which can cause use-after-free bugs. Fix this by immediately calling ieee80211_check_fast_rx after the VLAN change. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: mac80211: comprobar/borrar fast rx para cambios de VLAN que no sean 4addr sta Al mover una estación fuera de una VLAN y eliminar la VLAN después, la entrada fast_rx todavía contiene un puntero a netdev de la VLAN, lo que puede causar errores de uso después de la liberación. Solucione este problema llamando inmediatamente a ieee80211_check_fast_rx después del cambio de VLAN. • https://git.kernel.org/stable/c/ea9a0cfc07a7d3601cc680718d9cff0d6927a921 https://git.kernel.org/stable/c/be1dd9254fc115321d6fbee042026d42afc8d931 https://git.kernel.org/stable/c/e8b067c4058c0121ac8ca71559df8e2e08ff1a7e https://git.kernel.org/stable/c/c8bddbd91bc8e42c961a5e2cec20ab879f21100f https://git.kernel.org/stable/c/7eeabcea79b67cc29563e6a9a5c81f9e2c664d5b https://git.kernel.org/stable/c/6b948b54c8bd620725e0c906e44b10c0b13087a7 https://git.kernel.org/stable/c/2884a50f52313a7a911de3afcad065ddbb3d78fc https://git.kernel.org/stable/c/e8678551c0243f799b4859448781cbec1 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-35787 – md/md-bitmap: fix incorrect usage for sb_index
https://notcve.org/view.php?id=CVE-2024-35787
In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: fix incorrect usage for sb_index Commit d7038f951828 ("md-bitmap: don't use ->index for pages backing the bitmap file") removed page->index from bitmap code, but left wrong code logic for clustered-md. current code never set slot offset for cluster nodes, will sometimes cause crash in clustered env. Call trace (partly): md_bitmap_file_set_bit+0x110/0x1d8 [md_mod] md_bitmap_startwrite+0x13c/0x240 [md_mod] raid1_make_request+0x6b0/0x1c08 [raid1] md_handle_request+0x1dc/0x368 [md_mod] md_submit_bio+0x80/0xf8 [md_mod] __submit_bio+0x178/0x300 submit_bio_noacct_nocheck+0x11c/0x338 submit_bio_noacct+0x134/0x614 submit_bio+0x28/0xdc submit_bh_wbc+0x130/0x1cc submit_bh+0x1c/0x28 En el kernel de Linux, se resolvió la siguiente vulnerabilidad: md/md-bitmap: corrige el uso incorrecto de sb_index Commit d7038f951828 ("md-bitmap: no usar ->índice para páginas que respaldan el archivo de mapa de bits") página eliminada-> índice del código de mapa de bits, pero dejó una lógica de código incorrecta para clustered-md. El código actual nunca establece el desplazamiento de ranura para los nodos del clúster, a veces causa fallos en el entorno del clúster. Rastreo de llamadas (parcialmente): md_bitmap_file_set_bit+0x110/0x1d8 [md_mod] md_bitmap_startwrite+0x13c/0x240 [md_mod] raid1_make_request+0x6b0/0x1c08 [raid1] md_handle_request+0x1dc/0x368 [md_submit_bio+0x8 0/0xf8 [md_mod] __submit_bio+0x178/ 0x300 enviar_bio_noacct_nocheck+0x11c/0x338 enviar_bio_noacct+0x134/0x614 enviar_bio+0x28/0xdc enviar_bh_wbc+0x130/0x1cc enviar_bh+0x1c/0x28 • https://git.kernel.org/stable/c/d7038f951828da19fa9aafddfa087b69032c9687 https://git.kernel.org/stable/c/736ad6c577a367834118f57417038d45bb5e0a31 https://git.kernel.org/stable/c/55e55eb65fd5e09faf5a0e49ffcdd37905aaf4da https://git.kernel.org/stable/c/5a95815b17428ce2f56ec18da5e0d1b2a1a15240 https://git.kernel.org/stable/c/ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-35786 – drm/nouveau: fix stale locked mutex in nouveau_gem_ioctl_pushbuf
https://notcve.org/view.php?id=CVE-2024-35786
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix stale locked mutex in nouveau_gem_ioctl_pushbuf If VM_BIND is enabled on the client the legacy submission ioctl can't be used, however if a client tries to do so regardless it will return an error. In this case the clients mutex remained unlocked leading to a deadlock inside nouveau_drm_postclose or any other nouveau ioctl call. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: drm/nouveau: corrige el mutex bloqueado obsoleto en nouveau_gem_ioctl_pushbuf. Si VM_BIND está habilitado en el cliente, el ioctl de envío heredado no se puede usar; sin embargo, si un cliente intenta hacerlo independientemente, lo hará. devolver un error. En este caso, el mutex del cliente permaneció desbloqueado, lo que provocó un punto muerto dentro de nouveau_drm_postclose o cualquier otra llamada nouveau ioctl. • https://git.kernel.org/stable/c/b88baab828713ce0b49b185444b2ee83bed373a8 https://git.kernel.org/stable/c/c288a61a48ddb77ec097e11ab81b81027cd4e197 https://git.kernel.org/stable/c/b466416bdd6ecbde15ce987226ea633a0268fbb1 https://git.kernel.org/stable/c/daf8739c3322a762ce84f240f50e0c39181a41ab •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-35785 – tee: optee: Fix kernel panic caused by incorrect error handling
https://notcve.org/view.php?id=CVE-2024-35785
In the Linux kernel, the following vulnerability has been resolved: tee: optee: Fix kernel panic caused by incorrect error handling The error path while failing to register devices on the TEE bus has a bug leading to kernel panic as follows: [ 15.398930] Unable to handle kernel paging request at virtual address ffff07ed00626d7c [ 15.406913] Mem abort info: [ 15.409722] ESR = 0x0000000096000005 [ 15.413490] EC = 0x25: DABT (current EL), IL = 32 bits [ 15.418814] SET = 0, FnV = 0 [ 15.421878] EA = 0, S1PTW = 0 [ 15.425031] FSC = 0x05: level 1 translation fault [ 15.429922] Data abort info: [ 15.432813] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 15.438310] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 15.443372] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 15.448697] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000d9e3e000 [ 15.455413] [ffff07ed00626d7c] pgd=1800000bffdf9003, p4d=1800000bffdf9003, pud=0000000000000000 [ 15.464146] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP Commit 7269cba53d90 ("tee: optee: Fix supplicant based device enumeration") lead to the introduction of this bug. So fix it appropriately. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tee: optee: corrige el pánico del kernel causado por un manejo incorrecto de errores. La ruta de error al no poder registrar dispositivos en el bus TEE tiene un error que provoca el pánico del kernel de la siguiente manera: [15.398930] No se puede para manejar la solicitud de paginación del kernel en la dirección virtual ffff07ed00626d7c [15.406913] Información de cancelación de memoria: [15.409722] ESR = 0x0000000096000005 [15.413490] EC = 0x25: DABT (EL actual), IL = 32 bits [15.418814] SET = 0, FnV = 0 [ 15.421878] EA = 0, S1PTW = 0 [ 15.425031] FSC = 0x05: error de traducción de nivel 1 [ 15.429922] Información de cancelación de datos: [ 15.432813] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 15.438 310] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [15.443372] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [15.448697] tabla de intercambio: páginas de 4k, VA de 48 bits, pgdp=00000000d9e3e000 [15.455413] 00626d7c] pgd=1800000bffdf9003, p4d=1800000bffdf9003, pud=0000000000000000 [15.464146] Error interno: Ups: 0000000096000005 [#1] PREEMPT SMP Commit 7269cba53d90 ("tee opt: ee: Reparar la enumeración de dispositivos basada en solicitantes") conducen a la introducción de este error. Así que arréglalo apropiadamente. • https://git.kernel.org/stable/c/a953e45ebeae9a5ce342c012f7eb2a92cc8af89b https://git.kernel.org/stable/c/01c13d8a95e0909f0081d6e3e8a891761992371b https://git.kernel.org/stable/c/1c9561b438cbe61e78515fc7b16dc7fb8cf0b763 https://git.kernel.org/stable/c/d3c4786b01aad8c377718f92d6d9b15906ee0a2a https://git.kernel.org/stable/c/7269cba53d906cf257c139d3b3a53ad272176bca https://git.kernel.org/stable/c/bc40ded92af55760d12bec8222d4108de725dbe4 https://git.kernel.org/stable/c/4b12ff5edd141926d49c9ace4791adf3a4902fe7 https://git.kernel.org/stable/c/e5b5948c769aa1ebf962dddfb972f87d8 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-35784 – btrfs: fix deadlock with fiemap and extent locking
https://notcve.org/view.php?id=CVE-2024-35784
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix deadlock with fiemap and extent locking While working on the patchset to remove extent locking I got a lockdep splat with fiemap and pagefaulting with my new extent lock replacement lock. This deadlock exists with our normal code, we just don't have lockdep annotations with the extent locking so we've never noticed it. Since we're copying the fiemap extent to user space on every iteration we have the chance of pagefaulting. Because we hold the extent lock for the entire range we could mkwrite into a range in the file that we have mmap'ed. This would deadlock with the following stack trace [<0>] lock_extent+0x28d/0x2f0 [<0>] btrfs_page_mkwrite+0x273/0x8a0 [<0>] do_page_mkwrite+0x50/0xb0 [<0>] do_fault+0xc1/0x7b0 [<0>] __handle_mm_fault+0x2fa/0x460 [<0>] handle_mm_fault+0xa4/0x330 [<0>] do_user_addr_fault+0x1f4/0x800 [<0>] exc_page_fault+0x7c/0x1e0 [<0>] asm_exc_page_fault+0x26/0x30 [<0>] rep_movs_alternative+0x33/0x70 [<0>] _copy_to_user+0x49/0x70 [<0>] fiemap_fill_next_extent+0xc8/0x120 [<0>] emit_fiemap_extent+0x4d/0xa0 [<0>] extent_fiemap+0x7f8/0xad0 [<0>] btrfs_fiemap+0x49/0x80 [<0>] __x64_sys_ioctl+0x3e1/0xb50 [<0>] do_syscall_64+0x94/0x1a0 [<0>] entry_SYSCALL_64_after_hwframe+0x6e/0x76 I wrote an fstest to reproduce this deadlock without my replacement lock and verified that the deadlock exists with our existing locking. To fix this simply don't take the extent lock for the entire duration of the fiemap. This is safe in general because we keep track of where we are when we're searching the tree, so if an ordered extent updates in the middle of our fiemap call we'll still emit the correct extents because we know what offset we were on before. The only place we maintain the lock is searching delalloc. Since the delalloc stuff can change during writeback we want to lock the extent range so we have a consistent view of delalloc at the time we're checking to see if we need to set the delalloc flag. With this patch applied we no longer deadlock with my testcase. • https://git.kernel.org/stable/c/ded566b4637f1b6b4c9ba74e7d0b8493e93f19cf https://git.kernel.org/stable/c/89bca7fe6382d61e88c67a0b0e7bce315986fb8b https://git.kernel.org/stable/c/b0ad381fa7690244802aed119b478b4bdafc31dd •