CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-35903 – x86/bpf: Fix IP after emitting call depth accounting
https://notcve.org/view.php?id=CVE-2024-35903
In the Linux kernel, the following vulnerability has been resolved: x86/bpf: Fix IP after emitting call depth accounting Adjust the IP passed to `emit_patch` so it calculates the correct offset for the CALL instruction if `x86_call_depth_emit_accounting` emits code. Otherwise we will skip some instructions and most likely crash. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: x86/bpf: corrige la IP después de emitir la contabilidad de profundidad de llamadas. Ajuste la IP pasada a `emit_patch` para que calcule el desplazamiento correcto para la instrucción CALL si `x86_call_ Depth_emit_accounting` emite código. De lo contrario, nos saltaremos algunas instrucciones y lo más probable es que fallemos. • https://git.kernel.org/stable/c/b2e9dfe54be4d023124d588d6f03d16a9c0d2507 https://git.kernel.org/stable/c/3f9d57c771656bfd651e22edcfdb5f60e62542d4 https://git.kernel.org/stable/c/81166178cf0a0062a22b1b3b5368183d39577028 https://git.kernel.org/stable/c/9d98aa088386aee3db1b7b60b800c0fde0654a4a •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-35902 – net/rds: fix possible cp null dereference
https://notcve.org/view.php?id=CVE-2024-35902
In the Linux kernel, the following vulnerability has been resolved: net/rds: fix possible cp null dereference cp might be null, calling cp->cp_conn would produce null dereference [Simon Horman adds:] Analysis: * cp is a parameter of __rds_rdma_map and is not reassigned. * The following call-sites pass a NULL cp argument to __rds_rdma_map() - rds_get_mr() - rds_get_mr_for_dest * Prior to the code above, the following assumes that cp may be NULL (which is indicative, but could itself be unnecessary) trans_private = rs->rs_transport->get_mr( sg, nents, rs, &mr->r_key, cp ? cp->cp_conn : NULL, args->vec.addr, args->vec.bytes, need_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED); * The code modified by this patch is guarded by IS_ERR(trans_private), where trans_private is assigned as per the previous point in this analysis. The only implementation of get_mr that I could locate is rds_ib_get_mr() which can return an ERR_PTR if the conn (4th) argument is NULL. * ret is set to PTR_ERR(trans_private). rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL. Thus ret may be -ENODEV in which case the code in question will execute. Conclusion: * cp may be NULL at the point where this patch adds a check; this patch does seem to address a possible bug En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/rds: corrige la posible desreferencia nula de cp cp podría ser nulo, llamar a cp->cp_conn produciría una desreferencia nula [Simon Horman agrega:] Análisis: * cp es un parámetro de __rds_rdma_map y no es reasignado. * Los siguientes sitios de llamadas pasan un argumento cp NULL a __rds_rdma_map() - rds_get_mr() - rds_get_mr_for_dest * Antes del código anterior, lo siguiente supone que cp puede ser NULL (lo cual es indicativo, pero podría ser innecesario) trans_private = rs ->rs_transport->get_mr( sg, nents, rs, &mr->r_key, cp ? cp->cp_conn : NULL, args->vec.addr, args->vec.bytes, need_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED); * El código modificado por este parche está custodiado por IS_ERR(trans_private), donde trans_private se asigna según el punto anterior de este análisis. • https://git.kernel.org/stable/c/786854141057751bc08eb26f1b02e97c1631c8f4 https://git.kernel.org/stable/c/997efea2bf3a4adb96c306b9ad6a91442237bf5b https://git.kernel.org/stable/c/9dfc15a10dfd44f8ff7f27488651cb5be6af83c2 https://git.kernel.org/stable/c/b562ebe21ed9adcf42242797dd6cb75beef12bf0 https://git.kernel.org/stable/c/998fd719e6d6468b930ac0c44552ea9ff8b07b80 https://git.kernel.org/stable/c/2b505d05280739ce31d5708da840f42df827cb85 https://git.kernel.org/stable/c/c055fc00c07be1f0df7375ab0036cebd1106ed38 https://git.kernel.org/stable/c/907761307469adecb02461a14120e9a18 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-35901 – net: mana: Fix Rx DMA datasize and skb_over_panic
https://notcve.org/view.php?id=CVE-2024-35901
In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix Rx DMA datasize and skb_over_panic mana_get_rxbuf_cfg() aligns the RX buffer's DMA datasize to be multiple of 64. So a packet slightly bigger than mtu+14, say 1536, can be received and cause skb_over_panic. Sample dmesg: [ 5325.237162] skbuff: skb_over_panic: text:ffffffffc043277a len:1536 put:1536 head:ff1100018b517000 data:ff1100018b517100 tail:0x700 end:0x6ea dev:<NULL> [ 5325.243689] ------------[ cut here ]------------ [ 5325.245748] kernel BUG at net/core/skbuff.c:192! [ 5325.247838] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 5325.258374] RIP: 0010:skb_panic+0x4f/0x60 [ 5325.302941] Call Trace: [ 5325.304389] <IRQ> [ 5325.315794] ? skb_panic+0x4f/0x60 [ 5325.317457] ? asm_exc_invalid_op+0x1f/0x30 [ 5325.319490] ? • https://git.kernel.org/stable/c/2fbbd712baf1c60996554326728bbdbef5616e12 https://git.kernel.org/stable/c/ca58927b00385005f488b6a9905ced7a4f719aad https://git.kernel.org/stable/c/05cb7c41fa1a7a7b2c2a6b81bbe7c67f5c11932b https://git.kernel.org/stable/c/c0de6ab920aafb56feab56058e46b688e694a246 •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2024-35900 – netfilter: nf_tables: reject new basechain after table flag update
https://notcve.org/view.php?id=CVE-2024-35900
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject new basechain after table flag update When dormant flag is toggled, hooks are disabled in the commit phase by iterating over current chains in table (existing and new). The following configuration allows for an inconsistent state: add table x add chain x y { type filter hook input priority 0; } add table x { flags dormant; } add chain x w { type filter hook input priority 1; } which triggers the following warning when trying to unregister chain w which is already unregistered. [ 127.322252] WARNING: CPU: 7 PID: 1211 at net/netfilter/core.c:50 1 __nf_unregister_net_hook+0x21a/0x260 [...] [ 127.322519] Call Trace: [ 127.322521] <TASK> [ 127.322524] ? __warn+0x9f/0x1a0 [ 127.322531] ? __nf_unregister_net_hook+0x21a/0x260 [ 127.322537] ? report_bug+0x1b1/0x1e0 [ 127.322545] ? handle_bug+0x3c/0x70 [ 127.322552] ? • https://git.kernel.org/stable/c/e10f661adc556c4969c70ddaddf238bffdaf1e87 https://git.kernel.org/stable/c/d9c4da8cb74e8ee6e58a064a3573aa37acf6c935 https://git.kernel.org/stable/c/179d9ba5559a756f4322583388b3213fe4e391b0 https://git.kernel.org/stable/c/41bad13c0e8a5a2b47a7472cced922555372daab https://git.kernel.org/stable/c/7b6fba6918714afee3e17796113ccab636255c7b https://git.kernel.org/stable/c/8ba81dca416adf82fc5a2a23abc1a8cc02ad32fb https://git.kernel.org/stable/c/745cf6a843896cdac8766c74379300ed73c78830 https://git.kernel.org/stable/c/420132bee3d0136b7fba253a597b098fe •
CVSS: 6.1EPSS: 0%CPEs: 7EXPL: 0CVE-2024-35899 – netfilter: nf_tables: flush pending destroy work before exit_net release
https://notcve.org/view.php?id=CVE-2024-35899
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: flush pending destroy work before exit_net release Similar to 2c9f0293280e ("netfilter: nf_tables: flush pending destroy work before netlink notifier") to address a race between exit_net and the destroy workqueue. The trace below shows an element to be released via destroy workqueue while exit_net path (triggered via module removal) has already released the set that is used in such transaction. [ 1360.547789] BUG: KASAN: slab-use-after-free in nf_tables_trans_destroy_work+0x3f5/0x590 [nf_tables] [ 1360.547861] Read of size 8 at addr ffff888140500cc0 by task kworker/4:1/152465 [ 1360.547870] CPU: 4 PID: 152465 Comm: kworker/4:1 Not tainted 6.8.0+ #359 [ 1360.547882] Workqueue: events nf_tables_trans_destroy_work [nf_tables] [ 1360.547984] Call Trace: [ 1360.547991] <TASK> [ 1360.547998] dump_stack_lvl+0x53/0x70 [ 1360.548014] print_report+0xc4/0x610 [ 1360.548026] ? __virt_addr_valid+0xba/0x160 [ 1360.548040] ? __pfx__raw_spin_lock_irqsave+0x10/0x10 [ 1360.548054] ? nf_tables_trans_destroy_work+0x3f5/0x590 [nf_tables] [ 1360.548176] kasan_report+0xae/0xe0 [ 1360.548189] ? nf_tables_trans_destroy_work+0x3f5/0x590 [nf_tables] [ 1360.548312] nf_tables_trans_destroy_work+0x3f5/0x590 [nf_tables] [ 1360.548447] ? • https://git.kernel.org/stable/c/0935d558840099b3679c67bb7468dc78fcbad940 https://git.kernel.org/stable/c/f4e14695fe805eb0f0cb36e0ad6a560b9f985e86 https://git.kernel.org/stable/c/46c4481938e2ca62343b16ea83ab28f4c1733d31 https://git.kernel.org/stable/c/f7e3c88cc2a977c2b9a8aa52c1ce689e7b394e49 https://git.kernel.org/stable/c/4e8447a9a3d367b5065a0b7abe101da6e0037b6e https://git.kernel.org/stable/c/333b5085522cf1898d5a0d92616046b414f631a7 https://git.kernel.org/stable/c/d2c9eb19fc3b11caebafde4c30a76a49203d18a6 https://git.kernel.org/stable/c/24cea9677025e0de419989ecb692acd4b • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •