From: syzbot <syzbot+348b571beb5eeb70a582@syzkaller.appspotmail.com>
To: gregkh@linuxfoundation.org, hdanton@sina.com,
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] KASAN: use-after-free Read in dev_uevent
Date: Wed, 23 Feb 2022 16:09:07 -0800 [thread overview]
Message-ID: <000000000000095b0805d8b8642e@google.com> (raw)
In-Reply-To: <20220223233323.2104-1-hdanton@sina.com>
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
rved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved
[ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved
[ 0.000000][ T0] printk: bootconsole [earlyser0] enabled
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] ERROR: earlyprintk= earlyser already used
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** This system shows unhashed kernel memory addresses **
[ 0.000000][ T0] ** via the console, logs, and other interfaces. This **
[ 0.000000][ T0] ** might reduce the security of your system. **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** If you see this message and you are not debugging **
[ 0.000000][ T0] ** the kernel, report this immediately to your system **
[ 0.000000][ T0] ** administrator! **
[ 0.000000][ T0] ** **
[ 0.000000][ T0] ** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **
[ 0.000000][ T0] **********************************************************
[ 0.000000][ T0] Malformed early option 'vsyscall'
[ 0.000000][ T0] nopcid: PCID feature disabled
[ 0.000000][ T0] NX (Execute Disable) protection: active
[ 0.000000][ T0] SMBIOS 2.8 present.
[ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
[ 0.000000][ T0] Hypervisor detected: KVM
[ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00
[ 0.000010][ T0] kvm-clock: using sched offset of 4841464710 cycles
[ 0.006420][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[ 0.028208][ T0] tsc: Detected 2299.998 MHz processor
[ 0.044676][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000
[ 0.052048][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
[ 0.077664][ T0] found SMP MP-table at [mem 0x000f5c80-0x000f5c8f]
[ 0.085099][ T0] Using GB pages for direct mapping
[ 0.092737][ T0] ACPI: Early table checksum verification disabled
[ 0.099989][ T0] ACPI: RSDP 0x00000000000F5AD0 000014 (v00 BOCHS )
[ 0.107558][ T0] ACPI: RSDT 0x000000007FFE1F5B 000044 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001)
[ 0.118624][ T0] ACPI: FACP 0x000000007FFE17ED 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001)
[ 0.129324][ T0] ACPI: DSDT 0x000000007FFDF040 0027AD (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001)
[ 0.140350][ T0] ACPI: FACS 0x000000007FFDF000 000040
[ 0.147131][ T0] ACPI: APIC 0x000000007FFE18E1 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001)
[ 0.158068][ T0] ACPI: HPET 0x000000007FFE1991 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001)
[ 0.169790][ T0] ACPI: SRAT 0x000000007FFE19C9 000150 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001)
[ 0.183784][ T0] ACPI: MCFG 0x000000007FFE1B19 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001)
[ 0.196240][ T0] ACPI: SSDT 0x000000007FFE1B55 0002FE (v01 BOCHS NVDIMM 00000001 BXPC 00000001)
[ 0.206910][ T0] ACPI: NFIT 0x000000007FFE1E53 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001)
[ 0.217984][ T0] ACPI: WAET 0x000000007FFE1F33 000028 (v01 BOCHS BXPCWAET 00000001 BXPC 00000001)
[ 0.228680][ T0] ACPI: Reserving FACP table memory at [mem 0x7ffe17ed-0x7ffe18e0]
[ 0.237870][ T0] ACPI: Reserving DSDT table memory at [mem 0x7ffdf040-0x7ffe17ec]
[ 0.247060][ T0] ACPI: Reserving FACS table memory at [mem 0x7ffdf000-0x7ffdf03f]
[ 0.256685][ T0] ACPI: Reserving APIC table memory at [mem 0x7ffe18e1-0x7ffe1990]
[ 0.267278][ T0] ACPI: Reserving HPET table memory at [mem 0x7ffe1991-0x7ffe19c8]
[ 0.278047][ T0] ACPI: Reserving SRAT table memory at [mem 0x7ffe19c9-0x7ffe1b18]
[ 0.288568][ T0] ACPI: Reserving MCFG table memory at [mem 0x7ffe1b19-0x7ffe1b54]
[ 0.298508][ T0] ACPI: Reserving SSDT table memory at [mem 0x7ffe1b55-0x7ffe1e52]
[ 0.308970][ T0] ACPI: Reserving NFIT table memory at [mem 0x7ffe1e53-0x7ffe1f32]
[ 0.318669][ T0] ACPI: Reserving WAET table memory at [mem 0x7ffe1f33-0x7ffe1f5a]
[ 0.330876][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0
[ 0.339042][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0
[ 0.345474][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0
[ 0.353247][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0
[ 0.359480][ T0] SRAT: PXM 0 -> APIC 0x04 -> Node 0
[ 0.365721][ T0] SRAT: PXM 0 -> APIC 0x05 -> Node 0
[ 0.371884][ T0] SRAT: PXM 0 -> APIC 0x06 -> Node 0
[ 0.377522][ T0] SRAT: PXM 0 -> APIC 0x07 -> Node 0
[ 0.384813][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff]
[ 0.395457][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x7fffffff]
[ 0.404488][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x103ffffff] non-volatile
[ 0.415659][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x100000000-0x57fffffff] hotplug
[ 0.425295][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x7ffdcfff] -> [mem 0x00000000-0x7ffdcfff]
[ 0.441264][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB)
[ 0.452382][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB)
[ 0.463520][ T0] NODE_DATA(0) allocated [mem 0x3fffa000-0x3fffffff]
[ 0.495102][ T0] NODE_DATA(1) allocated [mem 0x7ffd6000-0x7ffdbfff]
[ 0.624260][ T0] Zone ranges:
[ 0.628554][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff]
[ 0.637027][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff]
[ 0.645022][ T0] Normal empty
[ 0.649211][ T0] Device empty
[ 0.653388][ T0] Movable zone start for each node
[ 0.659134][ T0] Early memory node ranges
[ 0.663919][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff]
[ 0.671093][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff]
[ 0.680263][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff]
[ 0.688146][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff]
[ 0.698201][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff]
[ 0.707121][ T0] On node 0, zone DMA: 1 pages in unavailable ranges
[ 0.707294][ T0] On node 0, zone DMA: 97 pages in unavailable ranges
[ 0.736554][ T0] On node 1, zone DMA32: 35 pages in unavailable ranges
[ 3.577677][ T0] kasan: KernelAddressSanitizer initialized
[ 3.600915][ T0] ACPI: PM-Timer IO Port: 0x608
[ 3.606813][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1])
[ 3.615468][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23
[ 3.625828][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[ 3.634874][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level)
[ 3.644347][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
[ 3.654081][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level)
[ 3.662744][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level)
[ 3.671805][ T0] ACPI: Using ACPI (MADT) for SMP configuration information
[ 3.679827][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[ 3.686796][ T0] TSC deadline timer available
[ 3.693129][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs
[ 3.702252][ T0] kvm-guest: KVM setup pv remote TLB flush
[ 3.710588][ T0] kvm-guest: setup PV sched yield
[ 3.716883][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff]
[ 3.729141][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[ 3.739780][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff]
[ 3.750742][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff]
[ 3.761917][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices
[ 3.771441][ T0] Booting paravirtualized kernel on KVM
[ 3.778731][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 3.868892][ T0] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:8 nr_node_ids:2
[ 3.941088][ T0] percpu: Embedded 69 pages/cpu s243080 r8192 d31352 u1048576
[ 3.949787][ T0] kvm-guest: PV spinlocks enabled
[ 3.955248][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 3.965589][ T0] Fallback order for Node 0: 0 1
[ 3.971703][ T0] Fallback order for Node 1: 1 0
[ 3.977643][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515805
[ 3.985125][ T0] Policy zone: DMA32
[ 3.988942][ T0] Kernel command line: earlyprintk=serial net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 ima_policy=tcb nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 binder.debug_mask=0 rcupdate.rcu_expedited=1 no_hash_pointers page_owner=on sysctl.vm.nr_hugepages=4 sysctl.vm.nr_overcommit_hugepages=4 secretmem.enable=1 root=/dev/sda console=ttyS0 vsyscall=native numa=fake=2 kvm-intel.nested=1 spec_store_bypass_disable=prctl nopcid vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 dummy_hcd.num=8 watchdog_thresh=55 workqueue.watchdog_thresh=140 sysctl.net.core.netdev_unregister_timeout_secs=140 panic_on_warn=1 root=/dev/sda console=ttyS0 root=/dev/sda1
[ 4.080347][ T0] Unknown kernel command line parameters "spec_store_bypass_disable=prctl", will be passed to user space.
[ 4.099480][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off
[ 4.106489][ T0] Stack Depot allocating hash table with memblock_alloc
[ 4.704849][ T0] Memory: 1433552K/2096620K available (139293K kernel code, 34169K rwdata, 29628K rodata, 4580K init, 25004K bss, 662812K reserved, 0K cma-reserved)
[ 4.729067][ T0] Dynamic Preempt: full
[ 4.735024][ T0] Running RCU self tests
[ 4.739495][ T0] rcu: Preemptible hierarchical RCU implementation.
[ 4.746547][ T0] rcu: RCU lockdep checking is enabled.
[ 4.754211][ T0] rcu: RCU callback double-/use-after-free debug is enabled.
[ 4.764303][ T0] rcu: RCU debug extended QS entry/exit.
[ 4.770362][ T0] All grace periods are expedited (rcu_expedited).
[ 4.777690][ T0] Trampoline variant of Tasks RCU enabled.
[ 4.784681][ T0] Tracing variant of Tasks RCU enabled.
[ 4.792455][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 4.870793][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16
[ 4.881707][ T0] kfence: initialized - using 2097152 bytes for 255 objects at 0xffff88807ea00000-0xffff88807ec00000
[ 4.895844][ T0] random: crng init done (trusting CPU's manufacturer)
[ 4.979384][ T0] Console: colour VGA+ 80x25
[ 4.984343][ T0] printk: console [ttyS0] enabled
[ 4.984343][ T0] printk: console [ttyS0] enabled
[ 4.998450][ T0] printk: bootconsole [earlyser0] disabled
[ 4.998450][ T0] printk: bootconsole [earlyser0] disabled
[ 5.013775][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 5.024328][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 5.029407][ T0] ... MAX_LOCK_DEPTH: 48
[ 5.035102][ T0] ... MAX_LOCKDEP_KEYS: 8192
[ 5.041645][ T0] ... CLASSHASH_SIZE: 4096
[ 5.048831][ T0] ... MAX_LOCKDEP_ENTRIES: 65536
[ 5.054594][ T0] ... MAX_LOCKDEP_CHAINS: 131072
[ 5.061737][ T0] ... CHAINHASH_SIZE: 65536
[ 5.068445][ T0] memory used by lock dependency info: 11129 kB
[ 5.076520][ T0] memory used for stack traces: 8320 kB
[ 5.082878][ T0] per task-struct memory footprint: 1920 bytes
[ 5.090267][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl
[ 5.103237][ T0] ACPI: Core revision 20211217
[ 5.111931][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
[ 5.124702][ T0] APIC: Switch to symmetric I/O mode setup
[ 5.130900][ T0] kvm-guest: setup PV IPIs
[ 5.152566][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[ 5.159998][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x212733415c7, max_idle_ns: 440795236380 ns
[ 5.172074][ T0] Calibrating delay loop (skipped) preset value.. 4599.99 BogoMIPS (lpj=22999980)
[ 5.182060][ T0] pid_max: default: 32768 minimum: 301
[ 5.193619][ T0] LSM: Security Framework initializing
[ 5.202508][ T0] landlock: Up and running.
[ 5.207072][ T0] Yama: becoming mindful.
[ 5.212453][ T0] TOMOYO Linux initialized
[ 5.217819][ T0] SELinux: Initializing.
[ 5.232263][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc)
[ 5.247309][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc)
[ 5.252395][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc)
[ 5.262162][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc)
[ 5.278290][ T0] x86/cpu: User Mode Instruction Prevention (UMIP) activated
[ 5.283030][ T0] Last level iTLB entries: 4KB 0, 2MB 0, 4MB 0
[ 5.292049][ T0] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 5.298386][ T0] Spectre V1 : Mitigation: usercopy/swapgs barriers and __user pointer sanitization
[ 5.302119][ T0] Spectre V2 : Spectre mitigation: kernel not compiled with retpoline; no mitigation available!
[ 5.302195][ T0] Speculative Store Bypass: Mitigation: Speculative Store Bypass disabled via prctl
[ 5.322102][ T0] MDS: Mitigation: Clear CPU buffers
[ 5.336209][ T0] Freeing SMP alternatives memory: 108K
[ 5.344907][ T1] smpboot: CPU0: Intel(R) Xeon(R) CPU @ 2.30GHz (family: 0x6, model: 0x3f, stepping: 0x0)
[ 5.356906][ T1] cblist_init_generic: Setting adjustable number of callback queues.
[ 5.362324][ T1] cblist_init_generic: Setting shift to 3 and lim to 1.
[ 5.371420][ T1] cblist_init_generic: Setting shift to 3 and lim to 1.
[ 5.372853][ T1] Running RCU-tasks wait API self tests
[ 5.492569][ T1] Performance Events: unsupported p6 CPU model 63 no PMU driver, software events only.
[ 5.504091][ T1] rcu: Hierarchical SRCU implementation.
[ 5.512259][ T13] Callback from call_rcu_tasks_trace() invoked.
[ 5.529324][ T1] NMI watchdog: Perf NMI watchdog permanently disabled
[ 5.535930][ T1] smp: Bringing up secondary CPUs ...
[ 5.555151][ T1] x86: Booting SMP configuration:
[ 5.562217][ T1] .... node #0, CPUs: #1
[ 5.575083][ T1] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details.
[ 5.591084][ T1] #2
[ 5.608423][ T1] #3
[ 5.615274][ T1] smp: Brought up 2 nodes, 4 CPUs
[ 5.622164][ T1] smpboot: Max logical packages: 2
[ 5.631031][ T1] smpboot: Total of 4 processors activated (18399.98 BogoMIPS)
[ 5.712169][ T12] Callback from call_rcu_tasks() invoked.
[ 5.777513][ T1] allocated 25165824 bytes of page_ext
[ 5.782961][ T1] Node 0, zone DMA: page owner found early allocated 0 pages
[ 5.804037][ T1] Node 0, zone DMA32: page owner found early allocated 6294 pages
[ 5.814579][ T1] Node 1, zone DMA32: page owner found early allocated 3897 pages
[ 5.824873][ T1] devtmpfs: initialized
[ 5.833339][ T1] x86/mm: Memory block size: 128MB
[ 5.878831][ T1] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 5.882775][ T1] futex hash table entries: 2048 (order: 6, 262144 bytes, vmalloc)
Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=103b5402700000
Tested on:
commit: 4f12b742 Merge tag 'nfs-for-5.17-3' of git://git.linux..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
kernel config: https://syzkaller.appspot.com/x/.config?x=f6a069ed94a1ed1d
dashboard link: https://syzkaller.appspot.com/bug?extid=348b571beb5eeb70a582
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch: https://syzkaller.appspot.com/x/patch.diff?x=123231fe700000
next parent reply other threads:[~2022-02-24 0:09 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220223233323.2104-1-hdanton@sina.com>
2022-02-24 0:09 ` syzbot [this message]
2020-06-19 5:48 KASAN: use-after-free Read in dev_uevent syzbot
2022-02-20 17:19 ` [syzbot] " syzbot
2022-02-23 6:51 ` Zhang, Qiang1
2022-02-23 7:13 ` gregkh
2022-02-23 8:08 ` Zhang, Qiang1
2022-02-23 11:17 ` Zhang, Qiang1
2022-02-23 11:23 ` Pavel Skripkin
2022-02-23 11:27 ` Pavel Skripkin
2022-02-23 11:29 ` gregkh
2022-02-23 14:38 ` stern
2022-02-23 16:00 ` gregkh
2022-02-23 16:34 ` stern
2022-02-24 1:44 ` Zhang, Qiang1
2022-02-24 3:14 ` Zhang, Qiang1
2022-02-24 21:23 ` stern
2022-02-24 22:37 ` gregkh
2022-02-25 2:06 ` stern
2022-02-25 8:53 ` gregkh
2022-02-25 15:51 ` stern
2022-02-26 9:07 ` gregkh
2022-03-02 19:10 ` stern
2022-03-02 21:36 ` gregkh
2022-02-25 1:45 ` Zhang, Qiang1
2022-03-05 18:58 ` stern
2022-03-05 19:15 ` syzbot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=000000000000095b0805d8b8642e@google.com \
--to=syzbot+348b571beb5eeb70a582@syzkaller.appspotmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=hdanton@sina.com \
--cc=linux-kernel@vger.kernel.org \
--cc=syzkaller-bugs@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.