CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2022-48669 – powerpc/pseries: Fix potential memleak in papr_get_attr()
https://notcve.org/view.php?id=CVE-2022-48669
In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix potential memleak in papr_get_attr() `buf` is allocated in papr_get_attr(), and krealloc() of `buf` could fail. We need to free the original `buf` in the case of failure. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: powerpc/pseries: corrija una posible fuga de mem en papr_get_attr() `buf` está asignado en papr_get_attr(), y krealloc() de `buf` podría fallar. Necesitamos liberar el "buf" original en caso de falla. A flaw was found in the Linux kernel. • https://git.kernel.org/stable/c/3c14b73454cf9f6e2146443fdfbdfb912c0efed3 https://git.kernel.org/stable/c/a3f22feb2220a945d1c3282e34199e8bcdc5afc4 https://git.kernel.org/stable/c/1699fb915b9f61794d559b55114c09a390aaf234 https://git.kernel.org/stable/c/7f7d39fe3d80d6143404940b2413010cf6527029 https://git.kernel.org/stable/c/d0647c3e81eff62b66d46fd4e475318cb8cb3610 https://git.kernel.org/stable/c/cda9c0d556283e2d4adaa9960b2dc19b16156bae https://access.redhat.com/security/cve/CVE-2022-48669 https://bugzilla.redhat.com/show_bug.cgi?id=2278537 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-27063 – leds: trigger: netdev: Fix kernel panic on interface rename trig notify
https://notcve.org/view.php?id=CVE-2024-27063
In the Linux kernel, the following vulnerability has been resolved: leds: trigger: netdev: Fix kernel panic on interface rename trig notify Commit d5e01266e7f5 ("leds: trigger: netdev: add additional specific link speed mode") in the various changes, reworked the way to set the LINKUP mode in commit cee4bd16c319 ("leds: trigger: netdev: Recheck NETDEV_LED_MODE_LINKUP on dev rename") and moved it to a generic function. This changed the logic where, in the previous implementation the dev from the trigger event was used to check if the carrier was ok, but in the new implementation with the generic function, the dev in trigger_data is used instead. This is problematic and cause a possible kernel panic due to the fact that the dev in the trigger_data still reference the old one as the new one (passed from the trigger event) still has to be hold and saved in the trigger_data struct (done in the NETDEV_REGISTER case). On calling of get_device_state(), an invalid net_dev is used and this cause a kernel panic. To handle this correctly, move the call to get_device_state() after the new net_dev is correctly set in trigger_data (in the NETDEV_REGISTER case) and correctly parse the new dev. En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: leds: trigger: netdev: corrige el pánico del kernel al cambiar el nombre de la interfaz, notifica el trigono. Commit d5e01266e7f5 ("leds: trigger: netdev: agrega un modo de velocidad de enlace específico adicional") en los diversos cambios, reelaborados la forma de configurar el modo LINKUP en el commit cee4bd16c319 ("leds: trigger: netdev: Recheck NETDEV_LED_MODE_LINKUP on dev rename") y lo moví a una función genérica. Esto cambió la lógica donde, en la implementación anterior, se usaba el desarrollo del evento desencadenante para verificar si el operador estaba bien, pero en la nueva implementación con la función genérica, se usa el desarrollo en trigger_data. Esto es problemático y causa un posible pánico en el kernel debido al hecho de que el desarrollador en trigger_data aún hace referencia al anterior, ya que el nuevo (pasado desde el evento desencadenante) aún debe retenerse y guardarse en la estructura trigger_data (hecho en el caso NETDEV_REGISTER). • https://git.kernel.org/stable/c/d5e01266e7f5fa12400d4c8aa4e86fe89dcc61e9 https://git.kernel.org/stable/c/10f2af1af8ab8a7064f193446abd5579d3def7e3 https://git.kernel.org/stable/c/acd025c7a7d151261533016a6ca2d38f2de04e87 https://git.kernel.org/stable/c/3f360227cb46edb2cd2494128e1e06ed5768a62e https://git.kernel.org/stable/c/415798bc07dd1c1ae3a656aa026580816e0b9fe8 •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-27062 – nouveau: lock the client object tree.
https://notcve.org/view.php?id=CVE-2024-27062
In the Linux kernel, the following vulnerability has been resolved: nouveau: lock the client object tree. It appears the client object tree has no locking unless I've missed something else. Fix races around adding/removing client objects, mostly vram bar mappings. 4562.099306] general protection fault, probably for non-canonical address 0x6677ed422bceb80c: 0000 [#1] PREEMPT SMP PTI [ 4562.099314] CPU: 2 PID: 23171 Comm: deqp-vk Not tainted 6.8.0-rc6+ #27 [ 4562.099324] Hardware name: Gigabyte Technology Co., Ltd. Z390 I AORUS PRO WIFI/Z390 I AORUS PRO WIFI-CF, BIOS F8 11/05/2021 [ 4562.099330] RIP: 0010:nvkm_object_search+0x1d/0x70 [nouveau] [ 4562.099503] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 00 48 89 f8 48 85 f6 74 39 48 8b 87 a0 00 00 00 48 85 c0 74 12 <48> 8b 48 f8 48 39 ce 73 15 48 8b 40 10 48 85 c0 75 ee 48 c7 c0 fe [ 4562.099506] RSP: 0000:ffffa94cc420bbf8 EFLAGS: 00010206 [ 4562.099512] RAX: 6677ed422bceb814 RBX: ffff98108791f400 RCX: ffff9810f26b8f58 [ 4562.099517] RDX: 0000000000000000 RSI: ffff9810f26b9158 RDI: ffff98108791f400 [ 4562.099519] RBP: ffff9810f26b9158 R08: 0000000000000000 R09: 0000000000000000 [ 4562.099521] R10: ffffa94cc420bc48 R11: 0000000000000001 R12: ffff9810f02a7cc0 [ 4562.099526] R13: 0000000000000000 R14: 00000000000000ff R15: 0000000000000007 [ 4562.099528] FS: 00007f629c5017c0(0000) GS:ffff98142c700000(0000) knlGS:0000000000000000 [ 4562.099534] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 4562.099536] CR2: 00007f629a882000 CR3: 000000017019e004 CR4: 00000000003706f0 [ 4562.099541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 4562.099542] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 4562.099544] Call Trace: [ 4562.099555] <TASK> [ 4562.099573] ? die_addr+0x36/0x90 [ 4562.099583] ? exc_general_protection+0x246/0x4a0 [ 4562.099593] ? • https://git.kernel.org/stable/c/6887314f5356389fc219b8152e951ac084a10ef7 https://git.kernel.org/stable/c/96c8751844171af4b3898fee3857ee180586f589 https://git.kernel.org/stable/c/b7cc4ff787a572edf2c55caeffaa88cd801eb135 https://access.redhat.com/security/cve/CVE-2024-27062 https://bugzilla.redhat.com/show_bug.cgi?id=2278387 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-27061 – crypto: sun8i-ce - Fix use after free in unprepare
https://notcve.org/view.php?id=CVE-2024-27061
In the Linux kernel, the following vulnerability has been resolved: crypto: sun8i-ce - Fix use after free in unprepare sun8i_ce_cipher_unprepare should be called before crypto_finalize_skcipher_request, because client callbacks may immediately free memory, that isn't needed anymore. But it will be used by unprepare after free. Before removing prepare/unprepare callbacks it was handled by crypto engine in crypto_finalize_request. Usually that results in a pointer dereference problem during a in crypto selftest. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000030 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=000000004716d000 [0000000000000030] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] SMP This problem is detected by KASAN as well. ================================================================== BUG: KASAN: slab-use-after-free in sun8i_ce_cipher_do_one+0x6e8/0xf80 [sun8i_ce] Read of size 8 at addr ffff00000dcdc040 by task 1c15000.crypto-/373 Hardware name: Pine64 PinePhone (1.2) (DT) Call trace: dump_backtrace+0x9c/0x128 show_stack+0x20/0x38 dump_stack_lvl+0x48/0x60 print_report+0xf8/0x5d8 kasan_report+0x90/0xd0 __asan_load8+0x9c/0xc0 sun8i_ce_cipher_do_one+0x6e8/0xf80 [sun8i_ce] crypto_pump_work+0x354/0x620 [crypto_engine] kthread_worker_fn+0x244/0x498 kthread+0x168/0x178 ret_from_fork+0x10/0x20 Allocated by task 379: kasan_save_stack+0x3c/0x68 kasan_set_track+0x2c/0x40 kasan_save_alloc_info+0x24/0x38 __kasan_kmalloc+0xd4/0xd8 __kmalloc+0x74/0x1d0 alg_test_skcipher+0x90/0x1f0 alg_test+0x24c/0x830 cryptomgr_test+0x38/0x60 kthread+0x168/0x178 ret_from_fork+0x10/0x20 Freed by task 379: kasan_save_stack+0x3c/0x68 kasan_set_track+0x2c/0x40 kasan_save_free_info+0x38/0x60 __kasan_slab_free+0x100/0x170 slab_free_freelist_hook+0xd4/0x1e8 __kmem_cache_free+0x15c/0x290 kfree+0x74/0x100 kfree_sensitive+0x80/0xb0 alg_test_skcipher+0x12c/0x1f0 alg_test+0x24c/0x830 cryptomgr_test+0x38/0x60 kthread+0x168/0x178 ret_from_fork+0x10/0x20 The buggy address belongs to the object at ffff00000dcdc000 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 64 bytes inside of freed 256-byte region [ffff00000dcdc000, ffff00000dcdc100) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: sun8i-ce: se corrige el use after free en unprepare. Se debe llamar a sun8i_ce_cipher_unprepare antes de crypto_finalize_skcipher_request, porque las devoluciones de llamada del cliente pueden liberar inmediatamente memoria, que ya no es necesaria. Pero será utilizado por los que no estén preparados después de ser gratuito. • https://git.kernel.org/stable/c/4136212ab18eb3dce6efb6e18108765c36708f71 https://git.kernel.org/stable/c/dc60b25540c82fc4baa95d1458ae96ead21859e0 https://git.kernel.org/stable/c/51a7d338c212e0640b1aca52ba6590d5bea49879 https://git.kernel.org/stable/c/183420038444547c149a0fc5f58e792c2752860c •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-27060 – thunderbolt: Fix NULL pointer dereference in tb_port_update_credits()
https://notcve.org/view.php?id=CVE-2024-27060
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Fix NULL pointer dereference in tb_port_update_credits() Olliver reported that his system crashes when plugging in Thunderbolt 1 device: BUG: kernel NULL pointer dereference, address: 0000000000000020 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:tb_port_do_update_credits+0x1b/0x130 [thunderbolt] Call Trace: <TASK> ? __die+0x23/0x70 ? page_fault_oops+0x171/0x4e0 ? exc_page_fault+0x7f/0x180 ? asm_exc_page_fault+0x26/0x30 ? • https://git.kernel.org/stable/c/81af2952e60603d12415e1a6fd200f8073a2ad8b https://git.kernel.org/stable/c/ce64ba1f6ec3439e4b4d880b4db99673f4507228 https://git.kernel.org/stable/c/d3d17e23d1a0d1f959b4fa55b35f1802d9c584fa https://git.kernel.org/stable/c/440fba897c5ae32d7df1f1d609dbb19e2bba7fbb •