CVE-2024-26865
Vulnerability from cvelistv5
Published
2024-04-17 10:27
Modified
2024-12-19 08:48
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: rds: tcp: Fix use-after-free of net in reqsk_timer_handler(). syzkaller reported a warning of netns tracker [0] followed by KASAN splat [1] and another ref tracker warning [1]. syzkaller could not find a repro, but in the log, the only suspicious sequence was as follows: 18:26:22 executing program 1: r0 = socket$inet6_mptcp(0xa, 0x1, 0x106) ... connect$inet6(r0, &(0x7f0000000080)={0xa, 0x4001, 0x0, @loopback}, 0x1c) (async) The notable thing here is 0x4001 in connect(), which is RDS_TCP_PORT. So, the scenario would be: 1. unshare(CLONE_NEWNET) creates a per netns tcp listener in rds_tcp_listen_init(). 2. syz-executor connect()s to it and creates a reqsk. 3. syz-executor exit()s immediately. 4. netns is dismantled. [0] 5. reqsk timer is fired, and UAF happens while freeing reqsk. [1] 6. listener is freed after RCU grace period. [2] Basically, reqsk assumes that the listener guarantees netns safety until all reqsk timers are expired by holding the listener's refcount. However, this was not the case for kernel sockets. Commit 740ea3c4a0b2 ("tcp: Clean up kernel listener's reqsk in inet_twsk_purge()") fixed this issue only for per-netns ehash. Let's apply the same fix for the global ehash. [0]: ref_tracker: net notrefcnt@0000000065449cc3 has 1/1 users at sk_alloc (./include/net/net_namespace.h:337 net/core/sock.c:2146) inet6_create (net/ipv6/af_inet6.c:192 net/ipv6/af_inet6.c:119) __sock_create (net/socket.c:1572) rds_tcp_listen_init (net/rds/tcp_listen.c:279) rds_tcp_init_net (net/rds/tcp.c:577) ops_init (net/core/net_namespace.c:137) setup_net (net/core/net_namespace.c:340) copy_net_ns (net/core/net_namespace.c:497) create_new_namespaces (kernel/nsproxy.c:110) unshare_nsproxy_namespaces (kernel/nsproxy.c:228 (discriminator 4)) ksys_unshare (kernel/fork.c:3429) __x64_sys_unshare (kernel/fork.c:3496) do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) ... WARNING: CPU: 0 PID: 27 at lib/ref_tracker.c:179 ref_tracker_dir_exit (lib/ref_tracker.c:179) [1]: BUG: KASAN: slab-use-after-free in inet_csk_reqsk_queue_drop (./include/net/inet_hashtables.h:180 net/ipv4/inet_connection_sock.c:952 net/ipv4/inet_connection_sock.c:966) Read of size 8 at addr ffff88801b370400 by task swapper/0/0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 Call Trace: <IRQ> dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1)) print_report (mm/kasan/report.c:378 mm/kasan/report.c:488) kasan_report (mm/kasan/report.c:603) inet_csk_reqsk_queue_drop (./include/net/inet_hashtables.h:180 net/ipv4/inet_connection_sock.c:952 net/ipv4/inet_connection_sock.c:966) reqsk_timer_handler (net/ipv4/inet_connection_sock.c:979 net/ipv4/inet_connection_sock.c:1092) call_timer_fn (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/timer.h:127 kernel/time/timer.c:1701) __run_timers.part.0 (kernel/time/timer.c:1752 kernel/time/timer.c:2038) run_timer_softirq (kernel/time/timer.c:2053) __do_softirq (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/irq.h:142 kernel/softirq.c:554) irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644) sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1076 (discriminator 14)) </IRQ> Allocated by task 258 on cpu 0 at 83.612050s: kasan_save_stack (mm/kasan/common.c:48) kasan_save_track (mm/kasan/common.c:68) __kasan_slab_alloc (mm/kasan/common.c:343) kmem_cache_alloc (mm/slub.c:3813 mm/slub.c:3860 mm/slub.c:3867) copy_net_ns (./include/linux/slab.h:701 net/core/net_namespace.c:421 net/core/net_namespace.c:480) create_new_namespaces (kernel/nsproxy.c:110) unshare_nsproxy_name ---truncated---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1e9fd5cf8d7f487332560f7bb312fc7d416817f3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a750d6a5b365265dbda33330a6188547ddb5c24
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9905a157048f441f1412e7bd13372f4a971d75c6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9ceac040506a05a30b104b2aa2e9146810704500
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f901ee07853ce97e9f1104c7c898fbbe447f0279
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1e9fd5cf8d7f487332560f7bb312fc7d416817f3
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2a750d6a5b365265dbda33330a6188547ddb5c24
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9905a157048f441f1412e7bd13372f4a971d75c6
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9ceac040506a05a30b104b2aa2e9146810704500
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f901ee07853ce97e9f1104c7c898fbbe447f0279
Impacted products
Vendor Product Version
Linux Linux Version: 4.3
Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrds: tcp: Fix use-after-free of net in reqsk_timer_handler().\n\nsyzkaller reported a warning of netns tracker [0] followed by KASAN\nsplat [1] and another ref tracker warning [1].\n\nsyzkaller could not find a repro, but in the log, the only suspicious\nsequence was as follows:\n\n  18:26:22 executing program 1:\n  r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)\n  ...\n  connect$inet6(r0, \u0026(0x7f0000000080)={0xa, 0x4001, 0x0, @loopback}, 0x1c) (async)\n\nThe notable thing here is 0x4001 in connect(), which is RDS_TCP_PORT.\n\nSo, the scenario would be:\n\n  1. unshare(CLONE_NEWNET) creates a per netns tcp listener in\n      rds_tcp_listen_init().\n  2. syz-executor connect()s to it and creates a reqsk.\n  3. syz-executor exit()s immediately.\n  4. netns is dismantled.  [0]\n  5. reqsk timer is fired, and UAF happens while freeing reqsk.  [1]\n  6. listener is freed after RCU grace period.  [2]\n\nBasically, reqsk assumes that the listener guarantees netns safety\nuntil all reqsk timers are expired by holding the listener\u0027s refcount.\nHowever, this was not the case for kernel sockets.\n\nCommit 740ea3c4a0b2 (\"tcp: Clean up kernel listener\u0027s reqsk in\ninet_twsk_purge()\") fixed this issue only for per-netns ehash.\n\nLet\u0027s apply the same fix for the global ehash.\n\n[0]:\nref_tracker: net notrefcnt@0000000065449cc3 has 1/1 users at\n     sk_alloc (./include/net/net_namespace.h:337 net/core/sock.c:2146)\n     inet6_create (net/ipv6/af_inet6.c:192 net/ipv6/af_inet6.c:119)\n     __sock_create (net/socket.c:1572)\n     rds_tcp_listen_init (net/rds/tcp_listen.c:279)\n     rds_tcp_init_net (net/rds/tcp.c:577)\n     ops_init (net/core/net_namespace.c:137)\n     setup_net (net/core/net_namespace.c:340)\n     copy_net_ns (net/core/net_namespace.c:497)\n     create_new_namespaces (kernel/nsproxy.c:110)\n     unshare_nsproxy_namespaces (kernel/nsproxy.c:228 (discriminator 4))\n     ksys_unshare (kernel/fork.c:3429)\n     __x64_sys_unshare (kernel/fork.c:3496)\n     do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)\n     entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)\n...\nWARNING: CPU: 0 PID: 27 at lib/ref_tracker.c:179 ref_tracker_dir_exit (lib/ref_tracker.c:179)\n\n[1]:\nBUG: KASAN: slab-use-after-free in inet_csk_reqsk_queue_drop (./include/net/inet_hashtables.h:180 net/ipv4/inet_connection_sock.c:952 net/ipv4/inet_connection_sock.c:966)\nRead of size 8 at addr ffff88801b370400 by task swapper/0/0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nCall Trace:\n \u003cIRQ\u003e\n dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1))\n print_report (mm/kasan/report.c:378 mm/kasan/report.c:488)\n kasan_report (mm/kasan/report.c:603)\n inet_csk_reqsk_queue_drop (./include/net/inet_hashtables.h:180 net/ipv4/inet_connection_sock.c:952 net/ipv4/inet_connection_sock.c:966)\n reqsk_timer_handler (net/ipv4/inet_connection_sock.c:979 net/ipv4/inet_connection_sock.c:1092)\n call_timer_fn (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/timer.h:127 kernel/time/timer.c:1701)\n __run_timers.part.0 (kernel/time/timer.c:1752 kernel/time/timer.c:2038)\n run_timer_softirq (kernel/time/timer.c:2053)\n __do_softirq (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/irq.h:142 kernel/softirq.c:554)\n irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644)\n sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1076 (discriminator 14))\n \u003c/IRQ\u003e\n\nAllocated by task 258 on cpu 0 at 83.612050s:\n kasan_save_stack (mm/kasan/common.c:48)\n kasan_save_track (mm/kasan/common.c:68)\n __kasan_slab_alloc (mm/kasan/common.c:343)\n kmem_cache_alloc (mm/slub.c:3813 mm/slub.c:3860 mm/slub.c:3867)\n copy_net_ns (./include/linux/slab.h:701 net/core/net_namespace.c:421 net/core/net_namespace.c:480)\n create_new_namespaces (kernel/nsproxy.c:110)\n unshare_nsproxy_name\n---truncated---"
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    "cveId": "CVE-2024-26865",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26865\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-04-17T11:15:09.207\",\"lastModified\":\"2024-11-21T09:03:14.880\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrds: tcp: Fix use-after-free of net in reqsk_timer_handler().\\n\\nsyzkaller reported a warning of netns tracker [0] followed by KASAN\\nsplat [1] and another ref tracker warning [1].\\n\\nsyzkaller could not find a repro, but in the log, the only suspicious\\nsequence was as follows:\\n\\n  18:26:22 executing program 1:\\n  r0 = socket$inet6_mptcp(0xa, 0x1, 0x106)\\n  ...\\n  connect$inet6(r0, \u0026(0x7f0000000080)={0xa, 0x4001, 0x0, @loopback}, 0x1c) (async)\\n\\nThe notable thing here is 0x4001 in connect(), which is RDS_TCP_PORT.\\n\\nSo, the scenario would be:\\n\\n  1. unshare(CLONE_NEWNET) creates a per netns tcp listener in\\n      rds_tcp_listen_init().\\n  2. syz-executor connect()s to it and creates a reqsk.\\n  3. syz-executor exit()s immediately.\\n  4. netns is dismantled.  [0]\\n  5. reqsk timer is fired, and UAF happens while freeing reqsk.  [1]\\n  6. listener is freed after RCU grace period.  [2]\\n\\nBasically, reqsk assumes that the listener guarantees netns safety\\nuntil all reqsk timers are expired by holding the listener\u0027s refcount.\\nHowever, this was not the case for kernel sockets.\\n\\nCommit 740ea3c4a0b2 (\\\"tcp: Clean up kernel listener\u0027s reqsk in\\ninet_twsk_purge()\\\") fixed this issue only for per-netns ehash.\\n\\nLet\u0027s apply the same fix for the global ehash.\\n\\n[0]:\\nref_tracker: net notrefcnt@0000000065449cc3 has 1/1 users at\\n     sk_alloc (./include/net/net_namespace.h:337 net/core/sock.c:2146)\\n     inet6_create (net/ipv6/af_inet6.c:192 net/ipv6/af_inet6.c:119)\\n     __sock_create (net/socket.c:1572)\\n     rds_tcp_listen_init (net/rds/tcp_listen.c:279)\\n     rds_tcp_init_net (net/rds/tcp.c:577)\\n     ops_init (net/core/net_namespace.c:137)\\n     setup_net (net/core/net_namespace.c:340)\\n     copy_net_ns (net/core/net_namespace.c:497)\\n     create_new_namespaces (kernel/nsproxy.c:110)\\n     unshare_nsproxy_namespaces (kernel/nsproxy.c:228 (discriminator 4))\\n     ksys_unshare (kernel/fork.c:3429)\\n     __x64_sys_unshare (kernel/fork.c:3496)\\n     do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)\\n     entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)\\n...\\nWARNING: CPU: 0 PID: 27 at lib/ref_tracker.c:179 ref_tracker_dir_exit (lib/ref_tracker.c:179)\\n\\n[1]:\\nBUG: KASAN: slab-use-after-free in inet_csk_reqsk_queue_drop (./include/net/inet_hashtables.h:180 net/ipv4/inet_connection_sock.c:952 net/ipv4/inet_connection_sock.c:966)\\nRead of size 8 at addr ffff88801b370400 by task swapper/0/0\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\\nCall Trace:\\n \u003cIRQ\u003e\\n dump_stack_lvl (lib/dump_stack.c:107 (discriminator 1))\\n print_report (mm/kasan/report.c:378 mm/kasan/report.c:488)\\n kasan_report (mm/kasan/report.c:603)\\n inet_csk_reqsk_queue_drop (./include/net/inet_hashtables.h:180 net/ipv4/inet_connection_sock.c:952 net/ipv4/inet_connection_sock.c:966)\\n reqsk_timer_handler (net/ipv4/inet_connection_sock.c:979 net/ipv4/inet_connection_sock.c:1092)\\n call_timer_fn (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/timer.h:127 kernel/time/timer.c:1701)\\n __run_timers.part.0 (kernel/time/timer.c:1752 kernel/time/timer.c:2038)\\n run_timer_softirq (kernel/time/timer.c:2053)\\n __do_softirq (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/irq.h:142 kernel/softirq.c:554)\\n irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644)\\n sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1076 (discriminator 14))\\n \u003c/IRQ\u003e\\n\\nAllocated by task 258 on cpu 0 at 83.612050s:\\n kasan_save_stack (mm/kasan/common.c:48)\\n kasan_save_track (mm/kasan/common.c:68)\\n __kasan_slab_alloc (mm/kasan/common.c:343)\\n kmem_cache_alloc (mm/slub.c:3813 mm/slub.c:3860 mm/slub.c:3867)\\n copy_net_ns (./include/linux/slab.h:701 net/core/net_namespace.c:421 net/core/net_namespace.c:480)\\n create_new_namespaces (kernel/nsproxy.c:110)\\n unshare_nsproxy_name\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: rds: tcp: Se corrige el use-after-free de red en reqsk_timer_handler(). syzkaller inform\u00f3 una advertencia de netns tracker [0] seguida de KASAN splat [1] y otra advertencia de ref tracker [1]. syzkaller no pudo encontrar una reproducci\u00f3n, pero en el registro, la \u00fanica secuencia sospechosa fue la siguiente: 18:26:22 ejecutando el programa 1: r0 = socket$inet6_mptcp(0xa, 0x1, 0x106) ... connect$inet6(r0, \u0026amp;(0x7f0000000080)={0xa, 0x4001, 0x0, @loopback}, 0x1c) (async) Lo notable aqu\u00ed es 0x4001 en connect(), que es RDS_TCP_PORT. Entonces, el escenario ser\u00eda: 1. unshare(CLONE_NEWNET) crea un oyente tcp por red en rds_tcp_listen_init(). 2. syz-executor se conecta a \u00e9l y crea una solicitud. 3. syz-executor sale () inmediatamente. 4. La red est\u00e1 desmantelada. [0] 5. Se activa el temporizador de reqsk y se produce UAF mientras se libera reqsk. [1] 6. El oyente se libera despu\u00e9s del per\u00edodo de gracia de RCU. [2] B\u00e1sicamente, reqsk supone que el oyente garantiza la seguridad de la red hasta que expiren todos los temporizadores de reqsk manteniendo el refcount del oyente. Sin embargo, este no fue el caso de los sockets del kernel. La confirmaci\u00f3n 740ea3c4a0b2 (\\\"tcp: Limpiar la solicitud del oyente del kernel en inet_twsk_purge()\\\") solucion\u00f3 este problema solo para ehash por red. Apliquemos la misma soluci\u00f3n para el ehash global. [0]: ref_tracker: net notrefcnt@0000000065449cc3 tiene 1/1 usuarios en sk_alloc (./include/net/net_namespace.h:337 net/core/sock.c:2146) inet6_create (net/ipv6/af_inet6.c:192 net/ipv6/af_inet6.c:119) __sock_create (net/socket.c:1572) rds_tcp_listen_init (net/rds/tcp_listen.c:279) rds_tcp_init_net (net/rds/tcp.c:577) ops_init (net/core/ net_namespace.c:137) setup_net (net/core/net_namespace.c:340) copy_net_ns (net/core/net_namespace.c:497) create_new_namespaces (kernel/nsproxy.c:110) unshare_nsproxy_namespaces (kernel/nsproxy.c:228 ( discriminador 4)) ksys_unshare (kernel/fork.c:3429) __x64_sys_unshare (kernel/fork.c:3496) do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) Entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) ... ADVERTENCIA: CPU: 0 PID: 27 en lib/ref_tracker.c:179 ref_tracker_dir_exit (lib/ref_tracker.c:179) [1]: ERROR: KASAN: slab-use-after-free en inet_csk_reqsk_queue_drop (./include/net/inet_hashtables.h:180 net/ipv4/inet_connection_sock.c:952 net/ipv4/inet_connection_sock.c:966) Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff88801b370400 mediante el intercambiador de tareas /0/0 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 01/04/2014 Seguimiento de llamadas:  dump_stack_lvl (lib/dump_stack .c:107 (discriminador 1)) print_report (mm/kasan/report.c:378 mm/kasan/report.c:488) kasan_report (mm/kasan/report.c:603) inet_csk_reqsk_queue_drop (./include/net/ inet_hashtables.h:180 net/ipv4/inet_connection_sock.c:952 net/ipv4/inet_connection_sock.c:966) reqsk_timer_handler (net/ipv4/inet_connection_sock.c:979 net/ipv4/inet_connection_sock.c:1092) call_timer_fn (./arch /x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/timer.h:127 kernel/time/timer.c:1701) __run_timers.part. 0 (kernel/time/timer.c:1752 kernel/time/timer.c:2038) run_timer_softirq (kernel/time/timer.c:2053) __do_softirq (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/irq.h:142 kernel/softirq.c:554) irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/ softirq.c:644) sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1076 (discriminator 14))  Asignado por la tarea 258 en la CPU 0 a 83.612050s: kasan_save_stack (mm/kasan/common.c :48) kasan_save_track (mm/kasan/common.c:68) __kasan_slab_alloc (mm/kasan/common.c:343) kmem_cache_alloc (mm/slub.c:3813 mm/slub.c:3860 mm/slub.c:3867 ) copy_net_ns (./include/linux/slab.h:701 net/core/net_namespace.c:421 net/core/net_namespace.c:480) create_new_namespaces (kernel/nsproxy.c:110) unshare_nsproxy_name ---truncado-- -\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1e9fd5cf8d7f487332560f7bb312fc7d416817f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2a750d6a5b365265dbda33330a6188547ddb5c24\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9905a157048f441f1412e7bd13372f4a971d75c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9ceac040506a05a30b104b2aa2e9146810704500\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f901ee07853ce97e9f1104c7c898fbbe447f0279\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1e9fd5cf8d7f487332560f7bb312fc7d416817f3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/2a750d6a5b365265dbda33330a6188547ddb5c24\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/9905a157048f441f1412e7bd13372f4a971d75c6\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/9ceac040506a05a30b104b2aa2e9146810704500\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/f901ee07853ce97e9f1104c7c898fbbe447f0279\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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